Готові списки джерел за темами / Associated Bottom Higgs Production

Добірка наукової літератури з теми "Associated Bottom Higgs Production"

Автор: Grafiati
Опубліковано: 11 березня 2023

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Статті в журналах з теми "Associated Bottom Higgs Production"

1

Krämer, Michael. "Associated Higgs production with bottom quarks at hadron colliders." Nuclear Physics B - Proceedings Supplements 135 (October 2004): 66–70. http://dx.doi.org/10.1016/j.nuclphysbps.2004.09.037.

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2

Dordevic, Milos. "Higgs physics at CMS." EPJ Web of Conferences 222 (2019): 01001. http://dx.doi.org/10.1051/epjconf/201922201001.

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The most recent results of a Higgs boson production and properties from the CMS Collaboration using the LHC Run 1 and Run 2 data are reported. These include analyses of a Higgs boson decaying to a pair of photons, four leptons via Z boson pair decays and the associated production of a Higgs boson with top quark pair, predicted by the Standard Model (SM). The studies of a Higgs boson decays to a pair of bottom quarks, a pair of tau leptons and a charm quark pair are also presented. The Higgs boson production via vector boson fusion (VBF) and decaying to invisible particles is reported here as well. The analysis of a Higgs boson decay to a pair of muons is also presented. The study of a Higgs boson pair production at 13 TeV is performed as well and projections of a Higgs boson self couplings together with the couplings to other particles at the HL-LHC are made.
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3

Hong-Sheng, Hou, Ma Wen-Gan, Zhang Ren-You, Sun Yan-Bin, and Wu Peng. "Pseudoscalar Higgs boson production associated with a single bottom quark at hadron colliders." Journal of High Energy Physics 2003, no. 09 (September 30, 2003): 074. http://dx.doi.org/10.1088/1126-6708/2003/09/074.

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4

Hou, Biao-Feng, Hua-Ying Zhang, and Heng-Heng Bi. "Higgs and Bottom Quarks Associated Production at High Energy Colliders in the Littlest Higgs Model with T-Parity." Communications in Theoretical Physics 69, no. 3 (March 2018): 297. http://dx.doi.org/10.1088/0253-6102/69/3/297.

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5

BOOS, E. E., S. V. DEMIDOV, and D. S. GORBUNOV. "INVISIBLE HIGGS IN WEAK BOSONS ASSOCIATIVE PRODUCTION WITH HEAVY QUARKS AT LHC: PROBING MASS AND WIDTH." International Journal of Modern Physics A 26, no. 19 (July 30, 2011): 3201–18. http://dx.doi.org/10.1142/s0217751x11053900.

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New physics coupled to the Higgs boson may hide it in the standard decay channels to be investigated at LHC. We consider the models where new invisible dominant decay modes of the Higgs boson are responsible for this hiding. We propose to study at LHC the weak boson production associated with heavy quarks: our analysis revealed that boson pair invariant mass distribution is sensitive to both mass and width of the invisible Higgs boson, if it is not too far from the weak boson pair threshold. We present tree-level results for the most relevant cases of top quarks and of bottom quarks in Standard Model extensions with large b-quark Yukawa coupling. We argue that QCD corrections do not spoil these results allowing for unambiguous extraction of the Higgs boson mass and width from the analysis of large enough amount of data.
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6

Ferrera, Giancarlo, Gábor Somogyi, and Francesco Tramontano. "Associated production of a Higgs boson decaying into bottom quarks at the LHC in full NNLO QCD." Physics Letters B 780 (May 2018): 346–51. http://dx.doi.org/10.1016/j.physletb.2018.03.021.

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7

Almarashi, Mosleh M. "Review of a Light NMSSM Pseudoscalar Higgs-State Production at the LHC." Universe 7, no. 11 (October 20, 2021): 392. http://dx.doi.org/10.3390/universe7110392.

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In this paper, we briefly review the LHC discovery potential of a light pseudoscalar Higgs boson of the NMSSM, a1, produced in the gluon fusion gg→a1, bottom-quark fusion bb¯→a1 and bottom-gluon fusion bg→ba1. We also review the LHC discovery potential of the next-to-lightest CP-even Higgs boson h2 being the non-SM-like Higgs, decaying either into two light CP-odd Higgs bosons a1 or into a light a1 and the Z gauge boson through the gluon fusion gg→h2 in the 4τ final state. We find that the light a1 can be detected at the LHC in a variety of production processes including the gluon fusion, bottom-quark fusion and bottom-gluon fusion. The latter two processes require high luminosity of the LHC and large values of tanβ. We also find that the LHC has the potential to discover the non-SM-like Higgs state, h2, decaying into a pair of light CP-odd Higgses a1’s, allowing the distinguishing of the NMSSM Higgs sector from the MSSM one as such a light a1, is impossible in the latter scenario.
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8

Huang, Wen-Tao, Hong-Lei Li, Shi-Yuan Li, Peng-Cheng Lu, Zong-Guo Si, Ying Wang, and Zhong-Juan Yang. "Higgs production in association with bottom quark pair at LHC." International Journal of Modern Physics A 34, no. 03n04 (February 10, 2019): 1950013. http://dx.doi.org/10.1142/s0217751x19500131.

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Анотація:
The direct observation of the Yukawa interaction related to Standard Model Higgs and the bottom quark is obtained from the [Formula: see text] process recently. The [Formula: see text]-tagging becomes an important tool to search for new heavy resonance production at LHC. We use the [Formula: see text]-tagging method to investigate the neutral Higgs production in association with a bottom quark pair, and perform the detector simulation for the signal process with the Higgs decaying into [Formula: see text] or [Formula: see text] together with the dominant backgrounds. Our results show that [Formula: see text] and [Formula: see text] processes will play an important role in the search for the exotic heavy Higgs production at LHC and future hadron colliders.
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9

YANG, DAPENG, BINGFANG YANG, and BIN XU. "PROBING THE LEFT–RIGHT TWIN HIGGS MODEL VIA PROCESS $e^{+}e^{-}\rightarrow b\bar{b}$ AT THE ILC." Modern Physics Letters A 27, no. 07 (March 7, 2012): 1250024. http://dx.doi.org/10.1142/s0217732312500241.

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In the framework of the Left–Right Twin Higgs model, we studied the bottom-quark pair production via e+e- collision at the International Linear Collider. We calculated the bottom-quark pair production cross-section at tree level and the relevant differential distributions. The relative correction of the production cross-section is significant and the result will be a sensitive probe of the Left–Right Twin Higgs model.
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10

DAWSON, S., C. B. JACKSON, L. REINA, and D. WACKEROTH. "Higgs Boson Production with Bottom Quarks at Hadron Colliders." International Journal of Modern Physics A 20, no. 15 (June 20, 2005): 3353–55. http://dx.doi.org/10.1142/s0217751x05026558.

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Дисертації з теми "Associated Bottom Higgs Production"

1

Dovier, Giacomo Oliviero. "Semi-inclusive associated bottom-Higgs production at LHC: the complete one-loop electroweak in the MSSM." Doctoral thesis, Università degli studi di Trieste, 2011. http://hdl.handle.net/10077/4815.

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2009/2010
Il bosone di Higgs il tassello mancante del Modello Standard: predetto da Peter Higgs negli anni sessanta, non ancora stato osservato sperimental- mente. Il Large Hadron Collider stato costruito con questo obiettivo in mente, assieme a molti altri. Uno dei processi pi interessanti per la pro- duzione di Higgs Supersimmetrico bg -> bH0 ( A0, h0). La natura dell'accoppiamento Yukawa nel MSSM lo rende predominate per alti valori di tan(beta) . In questa tesi vengono calcolate le correzioni elettrodeboli ad un loop alla sezione d'urto del processo nel MSSM, e viene mostrato come esse possano essere molto rilevanti per alcune regioni dello spazio dei parametri. Viene anche mostrato come i risultati siano indipendenti dalla scelta dello schema di rinormalizzazione tra DCPR and DR, ed anche come la consueta Improved Born Approximation non riproduca accuratamente i risultati ad un loop, mentre una diversa possibile approssimazione, la Reduced Vertex Approximation, in migliore accordo con il calcolo completo. Viene quindi eff ettuato un confronto con i risultati per un Two Higgs Doublet Modle, e viene mostrato come la di erenza con i risultati nel MSSM sia rilevante ad un loop, rendendo lo studio di questo processo una possibile via per discriminare tra i due modelli.
The Higgs particle is the missing piece of the Standard Model picture: pre- dicted by Peter Higgs in the late sixties, it has yet to be observed in a collider. The Large Hadron Collider has been built with this goal in mind, among many others. A very important channel to look at for SUSY Higgs production is bg -> bH0 (A0, h0). The nature of the MSSM Yukawa couplings make it dominant for high Values of tan(beta) . In my work I calculate the electroweak one loop corrections to the cross section of the process' cross section in the MSSM, and show that they can be very relevant for some regions of the parameters' space. It is also shown how the results obey a nice scheme independence at one loop for the two renormalization schemes DCPR and DR, as well as how the usual Improved Born Approximation fails in this case to reproduce the one loop results accurately, while a di fferent suggested Reduced Vertex Approximation is in better agreement with the full calculation. I then proceed to make a comparison with the results for a Two Higgs Doublets Model, and show that the di fference with the MSSM are big at the one loop level, such that this process could provide a way to discriminate between the two models.
XXIII Ciclo
1983
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2

Lund, Gustav. "Associated charged Higgs boson and squark production in the NUHM model." Thesis, Uppsala University, High Energy Physics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-114395.

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Conventional searches for the charged Higgs boson using its production in association with Standard Model (SM) quarks is notoriously weak in the mid-tanB range. Hoping to find an alternate channel to fill this gap, the production of the charged Higgs boson in association with supersymmetric squarks is studied. Using Monte Carlo generators the production at the LHC is simulated within the non universal Higgs mass model (NUHM). If the six parameters of the model (m0, m1/2, A0, tanB, u, mA) induce small masses of the stop, sbottom and charged Higgs, the production cross section can be of the order pb. Through scans of the input parameter the cross section is maximized, with the requirement that the stop decays directly to a neutralino - simplifying detection, in the point (m0, m1/2, A0, tanB, u, mA) = (190, 187, -1147, 179, 745, 13.2) where the cross section is 559 fb.

The production is compared to the irreducible backgrounds stop, stop, t, tbar and t, tbar + 2 jets. The former poses no severe constraints and can be easily removed using appropriate cuts. The latter, SM background, has a cross section almost 1000 times larger and strong cuts must be imposed to suppress it. Neglecting hadronization and systematic effects, we show that a 5 sigma discovery is possible at 133 fb-1. In this range, mH+ = 194 GeV and tanB = 13.2, other channels have little or no prospects of detecting the charged Higgs and the studied process shows good prospects for complementing charged Higgs searches at the LHC in the mid-tanB range.

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3

Agaras, Merve Nazlim. "Searches for associated Higgs Boson production with top quark pair and Higgs pair production in multi lepton final states with the ATLAS detector." Thesis, Université Clermont Auvergne‎ (2017-2020), 2020. http://www.theses.fr/2020CLFAC023.

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Depuis la découverte du boson de Higgs à une masse d'environ 125 GeV par les deux collaborations ATLAS et CMS en juillet 2012, il est devenu crucial de mesurer ses propriétés, telles que ses couplages avec d'autres particules, et de rechercher tout écart par rapport aux prévisions du Modèle Standard (SM). Le couplage Yukawa du quark top est proche de l'unité et est le plus fort dans le secteur fermionique. Par conséquent, ce couplage joue un rôle crucial dans la théorie. La détermination de la production de boson de Higgs avec une paire de quarks top (ttH) offre un accès a l'ordre dominant pour mesurer ce couplage. L'analyse de la production de ttH dans le cadre de l'expérience ATLAS exploite plusieurs canaux de désintégration du Higgs, ainsi que différents modes de désintégration des quarks top. Dans cette thèse, l'étude du processus ttH (H → Multi lepton) est présentée dans la topologie où le Higgs se désintègre en WW,ZZ ou tautau, en utilisant un ensemble de données correspondant à une luminosité intégrée de 79,8fb^-1 à √s = 13 TeV, recueillies avec le détecteur ATLAS entre 2015 et 2017. L'amélioration des connaissances sur la modélisation des bruits de fond et un modèle d'ajustement complexe est utilisée avec de nombreux degrés de liberté. Des ajustements particulièrement différents sont présentés afin de comprendre la modélisation du principal bruit de fond irréductible, ttW. En outre, une recherche sur la production de paires de bosons de Higgs dans les états finaux multi leptoniques est présentée. La recherche utilise 139fb^-1 de données issues de collisions proton-proton à une énergie de centre de masse de 13 TeV fournies par le Grand collisionneur de hadrons (LHC) et enregistrées par l'expérience ATLAS entre 2015 et 2018. Les premières études du canal 2 leptons de même signe sont réalisées afin d'optimiser le point de fonctionnement des leptons et d'estimer les contributions des bruits de fond. La méthode d'ajustement du modèle est appliquée pour estimer les bruits de fond réductibles et calculer la limite supérieure préliminaire prévue
Since the discovery of the Higgs boson at a mass around 125 GeV by both ATLAS and CMS collaborations in July 2012, it became crucial to measure its properties, such as its couplings to other particles, and search for any deviations from the Standard Model (SM) predictions. The top quark Yukawa coupling is close to unity and the strongest in the fermionic sector. Therefore, this coupling plays a crucial role in the theory. Determination of the associated production of The Higgs boson production with a pair of top quarks (ttH) offers a tree-level access to measuring this coupling. The analysis of ttH production at ATLAS experiment exploits several Higgs decay channel, together with different top quark decay modes. In this thesis, the study of the ttH (H → Multi lepton) process is presented in the topology where the Higgs decays to WW,ZZ or tautau, using a dataset corresponding to an integrated luminosity of 79.8fb^-1 at √s = 13 TeV, collected with the ATLAS detector between 2015-2017. Improved knowledge on the background modelling and the complex fit model is used with many degrees of freedoms. Particularly different fit setups are presented in order to understand the modelling of the major irreducible background, ttW. Furthermore, a search for the SM Higgs boson pair production in the multi lepton final states is presented. The search uses 139fb^-1 of proton-proton collisions data at a centre-of-mass energy of 13 TeV provided by the Large Hadron Collider (LHC) and recorded by the ATLAS experiment in 2015 and 2018. The first studies in two lepton same-sign channel is performed for lepton working point optimisation and estimation of background contributions. Template fit method is applied to estimated the reducible backgrounds and preliminary expected upper limit is calculated
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4

Agnew, James Paul. "Search for the associated production of Higgs boson with top anti-top pairs." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/search-for-the-associated-production-of-higgs-boson-with-top-antitop-pairs(c24f5919-6f3f-4b13-ad72-9ef9efbcb6bb).html.

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This thesis describes the search for the associated production of a Higgs boson with top anti-top pairs in proton anti-proton collisions at a centre-of-mass energy of 1.96 TeV.The data used were collected by the D0 detector during the RunII data taking period which ran from 2001 to 2011 at the Tevatron Collider located at the Fermi National Accelerator Laboratory (or Fermilab).Distributions of the H_T variable separated into 3 jet, 4 b-tagging and 2 lepton categories were used as inputs to a modified frequentist limit setting procedure, which was in turn used to search for the ttH process with Higgs decaying to b anti-b pairs. Since this process was not observed, limits were set on the cross section times branching ratio, with an expected (observed) limit of 36.8 (65.8) measured for a Higgs mass value of 125 GeV.
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5

Black, Curtis William. "Search for the Higgs boson decaying to tau leptons in the associated production mode at ATLAS." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/15432.

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This thesis presents the results of the search for the Standard Model Higgs boson, decaying to tau leptons, and produced in association with a leptonically decaying vector boson. Using the ATLAS detector at the LHC, the analysis is performed on 20.3 inverse femtobarn of proton-proton collisions recorded in 2012 at 8 TeV centre-of-mass energy. The analysis is made robust through the development of a background estimation method which uses Monte-Carlo simulation for the irreducible backgrounds and a data-driven estimation for the reducible backgrounds. No significant excess of events is observed. For a Higgs boson mass of 125 GeV, the 95% confidence level upper limit on the observed cross-section is 5.6 times the Standard Model prediction. The measured signal strength, normalized to the Standard Model expectation, is 2.3±1.6. This excess corresponds to a 1.4σ upward fluctuation of the background-only expectation but is consistent with the Standard Model expectation.
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6

CIRIOLO, VINCENZO. "Study of the Higgs boson associated production with a vector boson in the Higgs boson diphoton decay channel with the CMS detector." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241085.

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Questa tesi di dottorato presenta lo studio della produzione associata di un bosone di Higgs con un bosone vettore (VH) in collisioni protone-protone, utilizzando i dati raccolti ad un'energia nel centro di massa delle collisioni pari a 13 TeV con l'esperimento CMS nel 2016. Questo studio è ristretto allo stato finale dove il boson di Higgs decade in due fotoni. Dopo un'introduzione riguardante il contesto teorico e sperimentale che motiva questo studio (Capitolo 1) e una descrizione generale dell'esperimento CMS (Capitolo 2), il lavoro sperimental necessario per ottenere exxellenti performance dal calorimetro eletromagnetico di CMS sono descritti in dettaglio (Capitolo 4). Le utilizzate nell'analisi dei dati e i risultati sono descritti nel capitolo 4, includendo la discussione dell'ottimizzazione dell'analisi che sono stati ritenuti benefici per gli sviluppi futuri. In particolare, il canale in cui il bosone vettore decade in due quark a quello in cui il bosone W decade leptonicamente sono descritti. I risultati dell'analisi sono inclusi in un articolo recentemente sottomesso per la pubblicazione su una rivista internazionale, rappresentando i primi risultati della misura della produzione VH nel canale H→ γγ con dati raccolti nel Run 2 di LHC.
This Ph.D. thesis presents a study of the associated production of the Higgs boson with a vector boson (VH) in proton-proton collisions, using data collected at a center-of-mass energy of 13 TeV with the CMS experiment in 2016 for an integrated luminosity of 35.9 fb −1 . The study is restricted to final states were the Higgs boson decays in two photons (H→ γγ). After an introduction on the experimental and theoretical landscape that motivates this study (Chapter 1) and an overview of the CMS experiment (Chapter 2), the exper- imental work performed to ensure the best quality of the CMS ECAL reconstruction is described in detail (Chapter 3). The analysis method and the results are then described (Chapter 4), including the discussion of optimization steps that were identified and will be relevant for future developments. In particular, the channels with the vector boson decaying into a pair of quarks and the W boson decaying into a lepton and a neutrino are described This analysis, included in a paper recently submitted for publication, represents the first result on the measurement of the VH production process in the H→ γγ final state with the LHC Run 2 data.
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7

Howard, Jacob Russell. "Measurements of the Higgs Boson in the H-ττ decay channel". Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:14e6e708-0cd6-4022-a4b2-343c18c8e260.

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The generation of vector boson mass via the Higgs mechanism in the Standard Model has been confirmed by the 2012 discovery of a candidate Higgs boson in the H→WW, H→ZZ, and H→γγ decay channels. In contrast, the Yukawa couplings hypothesized to provide the mass of fermions in the Standard Model have yet to be observed. The H→ττ decay channel currently provides the best opportunity for observing these couplings. This thesis describes two separate but related searches for Higgs boson decays in the H→ττ decay channel using proton-proton collisions recorded by the ATLAS detector. The first analysis is a general search for all Higgs boson production mechanisms leading to a H→ττ decay using 4.5 fb−1 of 7 TeV and 20.3 fb−1 of 8 TeV proton-proton collision data. A deviation from the background-only hypothesis is observed with a significance of 4.5σ for a hypothetical Higgs boson mass of mH = 125 GeV — a strong indication of a H→ττ signal. For the same mass point, the best fit value for the signal strength is found to be 1.43 +0.43−0.37 x the Standard Model expectation. The second analysis is a search for Higgs boson production in association with a vector boson using 20.3 fb−1 of 8 TeV proton-proton collision data. Results in the ZllH→τlτh channel indicate limits of 9.14 x the Standard Model expectation for VH signal production at mH = 125 GeV. In addition, two studies on enhancement of computing performance in the ATLAS trigger and data analysis pipeline are presented.
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8

Walser, Manuel. "NLO QCD and SUSY-QCD corrections to associated MSSM Higgs production with heavy quarks at hadron colliders /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17592.

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9

Asquith, L. "Using ATLAS to investigate the associated production of a Higgs Boson with a pair of top quarks." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/20202/.

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Анотація:
This thesis describes the study of the channel t \overline{t} H^{0}(H^{0}\rightarrowb\overline{b} with the ATLAS detector with 30fb^-1 of data and a center of mass energy of 10 TeV. Chapter 1 provides a description of the ATLAS detector, followed by a theoretical background in Chapter 2 and a discussion of phenomenology and event generation in Chapter 3. Issues associated with leptons and missing energy are presented in Chapter 4, with focus on optimising the preselection cuts to reduce the rate of background processes, including those previously unconsidered for this channel but found to be important as a consequence of this study. In addition, the reconstruction of the leptonically decaying W Boson from lepton and missing energy is described. The treatment of jets is introduced in Chapter 5, with the focus being again on the optimisation of preselection cuts. Studies presented here are on corrections for energy lost via both muons and neutrinos in semi-leptonic bdecays and preselection cuts based on the transverse momenta and b-weights of individual jets. The issues associated with combinatorial background and the use of jet charge to reduce it is also introduced here. The choice of jet algorithm is considered of great importance for this channel, thus is presented in detail in Chapter 6. Chapter 7 explores the reconstruction of the Higgs Boson from jet pairs, focusing on the segregation of jets by b-weight. The reconstruction of the t \overline{t} H^{0} system is studied with various techniques; an investigation of the use of jet charge to discriminate between b and \overline{b} jets is presented as a novel likelihood variable.Chapter 8 summarises the results obtained using the optimised preselection, jet algorithm and jet charge method. Systematic uncertainties are discussed throughout the thesis where relevant and also summarised.
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10

Tenaglia, Giovanni. "Performance studies of the CMS distributed analysis system in the associated Higgs boson production with top quarks." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7704/.

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L'obiettivo di questa tesi è studiare la fattibilità dello studio della produzione associata ttH del bosone di Higgs con due quark top nell'esperimento CMS, e valutare le funzionalità e le caratteristiche della prossima generazione di toolkit per l'analisi distribuita a CMS (CRAB versione 3) per effettuare tale analisi. Nel settore della fisica del quark top, la produzione ttH è particolarmente interessante, soprattutto perchè rappresenta l'unica opportunità di studiare direttamente il vertice t-H senza dover fare assunzioni riguardanti possibili contributi dalla fisica oltre il Modello Standard. La preparazione per questa analisi è cruciale in questo momento, prima dell'inizio del Run-2 dell'LHC nel 2015. Per essere preparati a tale studio, le implicazioni tecniche di effettuare un'analisi completa in un ambito di calcolo distribuito come la Grid non dovrebbero essere sottovalutate. Per questo motivo, vengono presentati e discussi un'analisi dello stesso strumento CRAB3 (disponibile adesso in versione di pre-produzione) e un confronto diretto di prestazioni con CRAB2. Saranno raccolti e documentati inoltre suggerimenti e consigli per un team di analisi che sarà eventualmente coinvolto in questo studio. Nel Capitolo 1 è introdotta la fisica delle alte energie a LHC nell'esperimento CMS. Il Capitolo 2 discute il modello di calcolo di CMS e il sistema di analisi distribuita della Grid. Nel Capitolo 3 viene brevemente presentata la fisica del quark top e del bosone di Higgs. Il Capitolo 4 è dedicato alla preparazione dell'analisi dal punto di vista degli strumenti della Grid (CRAB3 vs CRAB2). Nel capitolo 5 è presentato e discusso uno studio di fattibilità per un'analisi del canale ttH in termini di efficienza di selezione.
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Книги з теми "Associated Bottom Higgs Production"

1

Serebryakov, Andrey, and Gennadiy Zhuravlev. Exploitation of oil and gas fields by horizontal wells. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/971768.

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The textbook describes the design features of offshore horizontal multi-hole production wells, as well as the bottom-hole components of horizontal multi-hole wells. The classification of complications of multi-hole horizontal wells, methods of their prevention and elimination are given. Methods of underground geonavigation of the development of offshore horizontal production wells are proposed. The geological and field bases of operation of horizontal offshore multi-hole oil and gas wells, modes and dynamics of oil, gas and associated water production, methods for calculating dynamic bottom-hole and reservoir pressures are specified. The technologies of operation of offshore horizontal multi-hole wells are presented. The composition and scope of environmental, field and research marine monitoring of the operation of offshore horizontal multi-hole wells and the protection of the marine environment in the production of oil and gas are justified. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for undergraduates of the enlarged group of "Earth Sciences" training areas, as well as for teachers, employees of the fuel and energy complex, industrial geological exploration and oil and gas production enterprises, scientific and design organizations.
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Частини книг з теми "Associated Bottom Higgs Production"

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Petrucciani, Giovanni. "Searches for VH and tt̄H associated production." In The Search for the Higgs Boson at CMS, 135–45. Pisa: Scuola Normale Superiore, 2013. http://dx.doi.org/10.1007/978-88-7642-482-3_6.

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Das, Pallabi. "Study of the Associated Production of Higgs Boson with a Single Top Quark." In XXII DAE High Energy Physics Symposium, 521–24. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73171-1_122.

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Ife-Adediran, Oluwatobi Ololade, and Oluyemi Bright Aboyewa. "Climate Change Resistant Energy Sources for Global Adaptation." In African Handbook of Climate Change Adaptation, 1955–66. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_106.

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AbstractA holistic response and adaptation to climatic vicissitudes and extreme conditions as well as their associated risks to human and ecological sustainability must adequately cater for energy needs and optimization. An interventional approach should, among other measures, seek to improve the resilience of existing and prospective energy systems to climate change. The structured and policy-driven nature of adaptation measures require a bottom-up proactive approach that envisages the performance and efficiency of these systems, especially in terms of their sensitivity and vulnerability to changing climate conditions. Therefore, this chapter seeks to scrutinize various sources of energy concerning their resistance capabilities to climate change in the face of increasing global energy demands and consumption. Renewable and conventional energy sources are co-examined and compared vis-à-vis the current trends and predictions on climatic factors that are bearing on their principles of production, supply, and distribution. Findings from this chapter will serve as assessment tools for decision makers and corroborate other ongoing discourse on climate actions towards socioeconomic development and a sustainable environment.
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Niedt, Greg. "A Tale of Three Villages: Contested Discourses of Place-Making in Central Philadelphia." In The Life and Afterlife of Gay Neighborhoods, 159–80. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66073-4_7.

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AbstractAs the acceptance of queer identities has proceeded in fits and starts over the last few decades, the question has been raised, is it still necessary to have dedicated queer spaces? City dwellers often reason that with supposed improvements in safety and social mixing, the “gay ghettos” that form a transitional stage in neighborhood revitalization should now become common areas. Yet the capitalist logic that drives this thinking often trades the physical threat of exclusion or violence for an existential one, jeopardizing a distinctive culture that remains valuable in the self-realization process of local queer citizens. This is visible not only in changing demographics, but also in the production of discourse across multiple levels; language and semiotics help to constitute neighborhoods, but also to conceptualize them. This chapter examines how public signs and artifacts reify and sustain three competing narratives of a single central Philadelphia neighborhood in flux: the traditionally queer “Gayborhood” that developed shortly after World War II, the officially designated “Washington Square West,” and the realtor-coined, recently gentrifying “Midtown Village.” I argue that the naming and describing of these spaces, and how their associated discourses are reflected by their contents, continues to play a role in the ongoing struggle for queer acceptance. Combining observational data of multimodal public texts (storefronts, flyers, street signs, etc.) and critical discourse analysis within the linguistic/semiotic landscapes paradigm, I present a critique of the presumed inevitability of queer erasure here. This is supplemented with a comparison of grassroots, bottom-up, and official, top-down documents in various media (maps, brochures, websites, social media, etc.) that perpetuate the different discourses. Ultimately, a change in urban scenery and how a neighborhood is envisioned only masks the fact that spaces of queer expression, marked by their eroding distinctiveness rather than their deviance, are still needed.
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Glashow, S. L., D. V. Nanopoulos, and A. Yildiz. "Associated production of Higgs bosons and Z particles." In The Standard Model Higgs Boson, 104–7. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-444-88807-5.50074-1.

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Peskin, Michael E. "The Higgs Boson." In Concepts of Elementary Particle Physics, 327–42. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198812180.003.0021.

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This chapter discusses the Higgs boson, the spin-0 particle in the Standard Model most closely associated with its spontaneous symmetry breaking. It gives the predictions of the Standard Model for the production and decay of Higgs bosons. It describes the experiments at the Large Hadron Collider that test these predictions.
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Sakaguti, Luiz Gustavo, Leonardo Zavilenski Fogaça, Camila Fabiano de Freitas, Wilker Caetano, Vagner Roberto Batistela, and Mara Heloisa Neves Olsen Scaliante. "GQD purification study obtained by bottom-up route aiming at the production of photocatalysts." In METHODOLOGY FOCUSED ON THE AREA OF INTERDISCIPLINARITY- V1. Seven Editora, 2023. http://dx.doi.org/10.56238/methofocusinterv1-070.

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Recent studies have shown that heterostructures composed of metal semiconductors (SC) and graphene quantum dots (QDs) have a photocatalytic performance considerably higher than that of intrinsic metallic semiconductors, this is because the GQDs reduce the electronic recombination on the surface of the CS, being still associated with the displacement of the absorption band to larger wavelengths. In the present work, graphene quantum dots were synthesized through commercial lignin (LcGQD), using nitric acid for depolymerization followed by a hydrothermal process. Analyses of the material demonstrated an average particulate size of 10.9 nm, UV-Vis absorption similar to that of other structures described in the literature, but without the presence of nitrogen peaks in the carbon structure, besides a remarkable specificity in fluorescence. The LcGQD then has great potential for use in photocatalysis, sensors, and optoelectronics.
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Säfsten, Kristina, Ulrika Harlin, Kerstin Johansen, Lisa Larsson, Christina Vult von Steyern, and Anna Öhrwall Rönnbäck. "Towards Resilient and Sustainable Production Systems: A Research Agenda." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220195.

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To be competitive, it is widely recognized that manufacturing companies need attention on sustainability aspects. However, there is still a lack of knowledge about how to combine requirements on sustainability and profitability to achieve long-term competitive manufacturing. Furthermore, there is a need for knowledge on how to develop resilient and sustainable production systems. This paper aims to explore the state-of-the art and state-of-practice associated with development of resilient and sustainable production systems, with focus on challenges and enablers. To achieve the aim of the paper, a traditional literature review was carried out, combined with results from knowledge creation workshops with five manufacturing companies striving towards resilient and sustainable production systems. In the paper, initial results from a three-year research project are included. The research project aims at developing knowledge that can support development of resilient and sustainable production systems, including the value chain, for the future. The industrial relevance of the project lies in ensuring a future-proof adaptable factory in an efficient industrial value chain, based on circularity in terms of minimum waste and long-term overall sustainability with a triple bottom line perspective, including social, ecological, and long-term economic values.
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Barr, Stewart, and Gareth Shaw. "Knowledge Co production and Behavioural Change, Collaborative approaches for promoting low carbon mobility." In Low Carbon Mobility Transitions. Goodfellow Publishers, 2016. http://dx.doi.org/10.23912/978-1-910158-64-7-3295.

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Behavioural change has become regarded as a key tool for policy makers to promote behavioural change that can reduce carbon emissions from personal travel. Yet academic research has suggested that promoting low carbon travel behaviours, in particular those associated with leisure and tourism practices, is particularly challenging because of the highly valued and conspicuous nature of the consumption involved. Accordingly, traditional top-down approaches to developing behavioural change campaigns have largely been ineffectual in this field and this chapter explores innovative ways to understand and develop behavioural change campaigns that are driven from the bottom upwards. In doing so, we draw on emergent literature from management studies and social marketing to explore how ideas of service dominant logic can be used to engage consumers in developing each stage of a behavioural change campaign. Using data and insights from research conducted in the south-east of the UK, we outline and evaluate the process for co-producing knowledge about low carbon travel and climate change. We illustrate how behavioural change campaign creation can be an engaging, lively and productive process of knowledge and experience sharing. The chapter ends by considering the role that co-production and co-creation can have in developing strategies for low carbon mobility and, more broadly, the ways in which publics understand and react to anthropogenic climate change.
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Emília Cunha, Maria, Hugo Quental Ferreira, Ana Barradas, and Pedro Pousão-Ferreira. "Response of Marine Plankton Communities in Ponds to the Presence of Vertical Structures." In Plankton Communities [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97475.

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The effects of bottom vertical structures like AquaMats® in enhancing plankton productivity was evaluated. One experimental earthen pond of 500 m2 was provided with AquaMats® increasing the surface substrate area 12 times and water quality, phytoplankton and zooplankton populations developed during almost 100 days was compared with a pond without AquaMats®. Their presence favored the development of Dinoflagellates (Miozoa, Dinophyceae), mostly Gymnodiniales, which may be of some concern since some species of this group have been associated with toxic algal blooms while in the ponds without AquaMats® Diatoms (Bacillariophyta) predominate. In both ponds plankton production was very much sculptured by external nutrients added to the systems. The balance between different nutrients is extremely important to regulate the phytoplankton populations with Diatoms blooming at silicate concentrations higher than 2 μM and below this level and at low nitrate and high ammonium being more appropriate for Dinoflagellates. The linkage between phytoplankton and zooplankton population in ponds is strong with zooplankton exerting control over the phytoplankton population and vice-versa. The use of vertical substrates enhances plankton productivity by increasing the substrate area for periphyton fixation. The main zooplankton taxonomic groups associated with the presence of AquaMats® were Calanoid and Harpacticoid copepodites and nauplii, veligers of gastropods and trochophore of polychaets, larval stages of organisms that except for calanoid copepods are benthic and correspond to the meroplanktonic phase in the life cycle of those organisms.
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Тези доповідей конференцій з теми "Associated Bottom Higgs Production"

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Taushif, Ahmed, A. H. Ajjath, Long Chen, Prasanna K. Dhani, Pooja Mukherjee, and V. Ravindran. "Two-Loop QCD Helicity Amplitudes for Higgs Production Associated with a Vector Boson through Bottom Quark Annihilation." In 14th International Symposium on Radiative Corrections. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.375.0010.

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Gedia, Krunal Bipin. "Search for the Higgs boson in the associated vector boson production mode where the vector boson decays leptonically and the Higgs boson decays to a pair of bottom quarks." In European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.364.0367.

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Harlander, Robert. "Higgs production in bottom quark annihilation." In “Loops and Legs in Quantum Field Theory ” 11th DESY Workshop on Elementary Particle Physics. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.151.0040.

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Wever, Chris, Jonas Lindert, Kirill Melnikov, and Lorenzo Tancredi. "Top-bottom interference effects in Higgs boson production." In 13th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology). Trieste, Italy: Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.290.0067.

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Alwall, Johan. "Matching top-bottom processes in charged higgs production." In International Workshop on Top Quark Physics. Trieste, Italy: Sissa Medialab, 2007. http://dx.doi.org/10.22323/1.024.0006.

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DEMARTIN, Federico, and Benedikt Maier. "Single top, W and Higgs associated production." In 8th International Workshop on Top Quark Physics. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.257.0080.

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Margaroli, Fabrizio. "The search for tt associated Higgs production in CMS." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0300.

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Dawson, Sally, Chris Jackson, and Prerit Jaiswal. "Associated b Quark-Higgs Boson Production at the LHC." In 35th International Conference of High Energy Physics. Trieste, Italy: Sissa Medialab, 2011. http://dx.doi.org/10.22323/1.120.0052.

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De Gruttola, Michele. "The search for associated Higgs boson production with Higgs decaying to bb in CMS." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0273.

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Spira, Michael, Stefan Dittmaier, Michael Kramer, and Manuel Walser. "Associated MSSM Higgs Production with Heavy Quarks: SUSY-QCD Corrections." In RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology). Trieste, Italy: Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.092.0046.

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Звіти організацій з теми "Associated Bottom Higgs Production"

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Abbasabadi, A., D. Bowser-Chao, D. A. Dicus, and W. W. Repko. Higgs-photon associated production at hadron colliders. Office of Scientific and Technical Information (OSTI), November 1997. http://dx.doi.org/10.2172/548724.

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BackusMayes, John Alexander. Search for associated production of z and Higgs bosons in proton-antiproton collisions at 1.96 TeV. Office of Scientific and Technical Information (OSTI), January 2010. http://dx.doi.org/10.2172/1000550.

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Chun, Xu. Search for the Standard Model Higgs Boson in associated production with w boson at the Tevatron. Office of Scientific and Technical Information (OSTI), November 2009. http://dx.doi.org/10.2172/970068.

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Hegab, Hatim H. Search for the standard model higgs boson in its associated production with a W vector boson in pp collisions at √s= 1.96 TeV. Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1212162.

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Kaushik, Venkatesh S. A Search for the Higgs Boson in its Associated Production with a W Vector Boson in p anti-p Collisions at √s = 1.96-TeV. Office of Scientific and Technical Information (OSTI), December 2007. http://dx.doi.org/10.2172/935244.

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Davis, Kevin Patrick. Measurement of the Bottom Quark Production Cross-Section in Proton-Antiproton Collisions at a Center-of-Mass Energy 630-GeV Using Muons with Associated Jets. Office of Scientific and Technical Information (OSTI), January 1999. http://dx.doi.org/10.2172/1421502.

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Parker, William Chelsuk. Search for the Higgs Boson Decaying to $W^+ W^-$ with Associated Jets and Measurement of the $W^+ W^-$ Production Cross Section and Differential Cross Sections with Jets in $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV. Office of Scientific and Technical Information (OSTI), January 2004. http://dx.doi.org/10.2172/1172586.

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