Relevant bibliographies by topics / Higgs couplings

Academic literature on the topic 'Higgs couplings'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Higgs couplings"

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Kumar, Satendra, Poulose Poulose, Rafiqul Rahaman, and Ritesh K. Singh. "Measuring Higgs self-couplings in the presence of V V H and V V HH at the ILC." International Journal of Modern Physics A 34, no. 18 (June 28, 2019): 1950094. http://dx.doi.org/10.1142/s0217751x19500945.

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The recent discovery of a Higgs boson at LHC, while establishing the Higgs mechanism as the way of electroweak symmetry breaking, started an era of precision measurements involving the Higgs boson. In an effective Lagrangian framework, we consider the [Formula: see text] process, at an ILC running at a center-of-mass energy of 500 GeV to investigate the effect of the [Formula: see text] and [Formula: see text] couplings on the sensitivity of [Formula: see text] coupling on this process. Our results show that the sensitivity of the trilinear Higgs self-couplings on this process has somewhat strong dependence on the Higgs-gauge boson couplings. Single- and two-parameter reaches of ILC with integrated luminosity of 1000 fb[Formula: see text] are obtained on all the effective couplings indicating how these limits are affected by the presence of anomalous [Formula: see text] and [Formula: see text] couplings. The kinematic distributions studied to understand the effect of the anomalous couplings, again, show strong influence of [Formula: see text]–[Formula: see text] couplings on the dependence of these distributions on [Formula: see text] coupling. Similar results are indicated in the case of the process, [Formula: see text], considered at a center-of-mass energy of 2 TeV, where the cross-section is large enough. The effect of [Formula: see text] and [Formula: see text] couplings on the sensitivity of [Formula: see text] coupling is clearly established through our analyses in this process.
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RIZZO, THOMAS G. "ONE LOOP-INDUCED WZH COUPLING IN THE TWO HIGGS DOUBLET MODEL." Modern Physics Letters A 04, no. 28 (December 30, 1989): 2757–66. http://dx.doi.org/10.1142/s0217732389003087.

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Although absent at the tree level in models with only doublet and singlet Higgs representations, the WZH coupling can be induced at the one-loop level. We examine the size of this induced coupling in the two Higgs doublet model due to fermion as well as Higgs/gauge boson loops. Such couplings could provide a new mechanism for charged Higgs production at colliders and are ‘backgrounds’ to new physics beyond the Standard Model. We find, however, that these couplings are very weak for all regions of the parameter space explored.
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Hou, George Wei-Shu. "CP Violation for the Heavens and the Earth." Universe 8, no. 4 (April 11, 2022): 234. http://dx.doi.org/10.3390/universe8040234.

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Electroweak baryogenesis can be driven by the top quark in a general two Higgs doublet model with extra Yukawa couplings. Higgs quartics provide the first order phase transition, while extra top Yukawa coupling ρtt can fuel the cosmic baryon asymmetry through the λtImρtt product, with flavor-changing ρtc coupling as backup. The impressive ACME 2018 bound on the electron electric dipole moment calls for an extra electron coupling ρee for exquisite cancellation among dangerous diagrams, broadening the baryogenesis solution space. The mechanism suggests that extra Yukawa couplings echo the hierarchical structure of standard Yukawa couplings. Phenomenological consequences in the Higgs search and flavor physics are discussed, with μ and τ EDM touched upon.
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Hou, George Wei-Shu. "On Extra Top Yukawa Couplings of a Second Higgs Doublet." Universe 8, no. 9 (September 9, 2022): 475. http://dx.doi.org/10.3390/universe8090475.

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A very likely New Physics in plain sight, but that the community does not see, is a second Higgs doublet that has a second set of Yukawa couplings. The extra tt and tc couplings can each drive baryogenesis, with O(1) Higgs quartic couplings providing a first order electroweak phase transition. A natural cancellation mechanism can tame electron EDM, if extra ee, tt couplings “know” the known fermion mass and mixing hierarchies. Colliding c with g produces tH/A, bH+ via extra tc coupling, and together with extra tt coupling give ttc(bar), ttt(bar), and btb(bar) signatures at the LHC. Extra tu coupling can also be probed, but more definitive would be the B to μν and τν decay rate ratio. Myriad extra Yukawa couplings can make an impact on flavor physics and CP violation, including on muon g-2. The opening to the prelude of a new physics Higgs and flavor era may unfold before us.
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GONZALEZ-GARCIA, M. C. "ANOMALOUS HIGGS COUPLINGS." International Journal of Modern Physics A 14, no. 20 (August 10, 1999): 3121–56. http://dx.doi.org/10.1142/s0217751x99001494.

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We review the effects of new effective interactions on Higgs-boson phenomenology. New physics in the electroweak bosonic sector is expected to induce additional interactions between the Higgs doublet field and the electroweak gauge bosons, leading to anomalous Higgs couplings as well as anomalous gauge-boson self-interactions. Using a linearly realized SU (2)L× U (1)Y invariant effective Lagrangian to describe the bosonic sector of the Standard Model, we review the effects of the new effective interactions on the Higgs-boson production rates and decay modes. We summarize the results from searches for the new Higgs signatures induced by the anomalous interactions in order to constrain the scale of new physics, in particular at CERN LEP and Fermilab Tevatron colliders.
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Bhagwagar, Azadan, and Raza M. Syed. "Using C++ to Calculate SO(10) Tensor Couplings." Symmetry 13, no. 10 (October 4, 2021): 1871. http://dx.doi.org/10.3390/sym13101871.

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Model building in SO(10), which is the leading grand unification framework, often involves large Higgs representations and their couplings. Explicit calculations of such couplings is a multi-step process that involves laborious calculations that are time consuming and error prone, an issue which only grows as the complexity of the coupling increases. Therefore, there exists an opportunity to leverage the abilities of computer software in order to algorithmically perform these calculations on demand. This paper outlines the details of such software, implemented in C++ using in-built libraries. The software is capable of accepting invariant couplings involving an arbitrary number of SO(10) Higgs tensors, each having up to five indices. The output is then produced in LaTeX, so that it is universally readable and sufficiently expressive. Through the use of this software, SO(10) coupling analysis can be performed in a way that minimizes calculation time, eliminates errors, and allows for experimentation with couplings that have not been computed before in the literature. Furthermore, this software can be expanded in the future to account for similar Higgs–Spinor coupling analysis, or extended to include further SO(N) invariant couplings.
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Han, Xiao-Fang, Lei Wang, and Jin Min Yang. "Higgs pair signal enhanced in the 2HDM with two degenerate 125 GeV Higgs bosons." Modern Physics Letters A 31, no. 31 (September 23, 2016): 1650178. http://dx.doi.org/10.1142/s0217732316501789.

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We discuss a scenario of the type-II two-Higgs-doublet model (2HDM) in which the [Formula: see text] rate of the Higgs pair production is enhanced due to the two nearly degenerate 125 GeV Higgs bosons (h, H). Considering various theoretical and experimental constraints, we figure out the allowed ranges of the trilinear couplings of these two Higgs bosons and calculate the signal rate of [Formula: see text] from the productions of Higgs pairs (hh, hH, HH) at the large hadron collider (LHC). We find that in the allowed parameter space some trilinear Higgs couplings can be larger than the Standard Model (SM) value by an order and the production rate of [Formula: see text] can be greatly enhanced. We also consider a “decoupling” benchmark point where the light CP-even Higgs has a SM-like cubic self-coupling while other trilinear couplings are very small. With a detailed simulation on the [Formula: see text] signal and backgrounds, we find that in such a “decoupling” scenario the hh and hH channels can jointly enhance the statistical significance to 5[Formula: see text] at 14 TeV LHC with an integrated luminosity of 3000 fb[Formula: see text].
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PASUPATHY, J. "A CALCULATION OF HIGGS MASS IN THE STANDARD MODEL." Modern Physics Letters A 15, no. 26 (August 30, 2000): 1605–10. http://dx.doi.org/10.1142/s0217732300002140.

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The assumption that the ratio of the Higgs self-coupling to the square of its Yukawa coupling to the top is (almost) independent of the renormalization scale fixes the Higgs mass within narrow limits at m H =160 GeV using only the values of gauge couplings and top mass.
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GUNION, JOHN F. "PROBING EXOTIC HIGGS SECTORS IN ℓ-ℓ- COLLISIONS." International Journal of Modern Physics A 13, no. 14 (June 10, 1998): 2277–97. http://dx.doi.org/10.1142/s0217751x98001074.

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I review extended Higgs sectors and constraints thereon arising from ρ=1, gauge-coupling unification and b→sγ. The couplings and decays of the Higgs boson eigen-states are outlined for triplet representations. Direct experimental probes of exotic Higgs bosons are reviewed with a focus on the important role that would be played by an e-e- or μ-μ- collider.
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Chishtie, F. A., M. D. Lepage, D. GC McKeon, T. G. Steele, and I. Zakout. "Exact one-loop running couplings in the standard model." Canadian Journal of Physics 86, no. 9 (September 1, 2008): 1067–70. http://dx.doi.org/10.1139/p08-036.

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Taking the dominant couplings in the standard model to be the quartic scalar coupling, the Yukawa coupling of the top quark, and the SU(3) gauge coupling, we consider their associated running couplings to one-loop order. Despite the nonlinear nature of the differential equations governing these functions, we show that they can be solved exactly. The nature of these solutions is discussed and their singularity structure is examined. It is shown that for a sufficiently small Higgs mass, the quartic scalar coupling decreases with increasing energy scale and becomes negative, indicative of vacuum instability. This behavior changes for a Higgs mass greater than 168 GeV, beyond which this couplant increases with increasing energy scales and becomes singular prior to the ultraviolet pole of the Yukawa coupling. Upper and lower bounds on the Higgs mass corresponding to new physics at the TeV scale are obtained and compare favourably with the numerical results of the one-loop and two-loop analyses with inclusion of electroweak couplings.PACS Nos.: 11.10.Hi, 14.80.Bn
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Dissertations / Theses on the topic "Higgs couplings"

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Riad, Stella. "Phenomenology of neutrino properties, unification, and Higgs couplings beyond the Standard Model." Doctoral thesis, KTH, Teoretisk partikelfysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202311.

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The vast majority of experiments in particle physics can be described by the Standard Model of particle physics (SM). However, there are indications for physics beyond it. The only experimentally demonstrated problem of the model is the difficulty to describe neutrino masses and leptonic mixing. There is a plethora of models that try to describe these phenomena and this thesis investigates several possibilities for new models, both full theories and effective frameworks.   The values of the parameters in a model are dependent on the energy scale and we say that the parameters run. The exact behavior of the running depends on the model and it provides a signature of the model. For a model defined at high energies it is necessary to run the parameters down to the electroweak scale in order to perform a comparison to the known values of observed quantities. In this thesis, we discuss renormalization group running in the context of extra dimensions and we provide an upper limit on the cutoff scale. We perform renormalization group running in two versions of a non-supersymmetric SO(10) model and we show that the SM parameters can be accommodated in both versions. In addition, we perform the running for the gauge couplings in a large set of radiative neutrino mass models and conclude that unification is possible in some of them.   The Higgs boson provides new possibilities to study physics beyond the SM. Its properties have to be tested with extremely high precision before it could be established whether the particle is truly the SM Higgs boson or not. In this thesis, we perform Bayesian parameter inference and model comparison. For models where the magnitude of the Higgs couplings is varied, we show that the SM is favored in comparison to all other models. Furthermore, we discuss lepton flavor violating processes in the context of the Zee model. We find that these can be sizeable and close to the experimental limits.

QC 20170221

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Voutsinas, Georgios. "Optimisation of the ILC vertex detector and study of the Higgs couplings." Thesis, Strasbourg, 2012. http://www.theses.fr/2012STRAE053/document.

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Cette thèse est une contribution au document intitulé "Detector Baseline Document (DBD)" décrivant le conceptde détecteur ILD envisagé auprès du collisionneur linéaire international électron-positon ILC (acronyme del'anglais International Linear Collider).Les objectifs de physique de l'ILD nécessitent un détecteur de vertex (VXD) particulièrement léger, rapide et trèsgranulaire permettant d'atteindre une résolution sans précédent sur le paramètre d'impact des trajectoiresreconstruites des particules produites dans les interactions étudiées. Le principal objectif de cette thèse est demontrer comment optimiser les paramètres du VXD dans le cas ou il est composé de Capteurs à Pixels Actifsfabriqués en technologie industrielle CMOS (CAPS). Ce travail a été réalisé en étudiant la sensibilité desperformances d'étiquetage des saveurs lourdes et de la précision sur les rapports d'embranchement hadroniquedu boson de Higgs aux différents paramètres du VXD.Le cahier des charges du VXD, particulièrement ambitieux, a nécessité le développement d'une nouvelletechnologie de capteurs de pixels de silicium, les CAPS, dont le groupe PICSEL de l'IPHC est à l'origine. Lavitesse de lecture et l'influence des paramètres qui régissent la fabrication des capteurs en fonderie ont étéétudiées dans cette thèse, et des prototypesde CAPS ont été caractérisés sur faisceau de particules. Enfin, les performances de trajectométrie d'un VXDcomposé de CAPS a été évalué avec des études de simulation
This thesis is a contribution to the " Detector Baseline Document ", describing the ILD detector which is intendedfor the International Linear Collider (ILC).The physics goals of the ILD call for a vertex detector (VXD) particularly light, rapid and very granular allowing toreach an unprecedented resolution on the impact parameter of the tracks that reconstruct the particles producedin the studied interactions. The principle goal of this thesis is to show how to optimise the parameters of the VXDin the case that is composed of Active Pixel Sensors manufactured in industrial CMOS technology (CAPS). Thiswork has been realised by studying the sensitivity of the performance of the heavy flavour tagging and theprecision on the hadronic branching fractions of the Higgs boson as a function of different sets of VXDparameters.The specifications of the VXD, particularly ambitious, call for the development of a novel silicon pixel sensorstechnology, the CAPS, which was pioneered by the PICSEL group of IPHC. The readout speed and the influenceof the fabrication parameters have been studied in this thesis, and CAPS prototypes have been characterised intest beams. Finally, the tracking performance of a CAPS based VXD has been evaluated with simulation studies
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Stefaniak, Tim [Verfasser]. "Higgs Couplings and Supersymmetry in the Light of early LHC Results / Tim Stefaniak." Bonn : Universitäts- und Landesbibliothek Bonn, 2014. http://d-nb.info/1060787318/34.

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Carrington, James Michael. "Vacuum stability of the standard model and BSM extensions." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8851.

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The Standard Model scalar potential contains a minimum at the Electroweak scale, responsible for the masses of the weak gauge bosons through the Higgs mechanism. However, if the Electroweak minimum is only a local minimum, and there exists a global minimum at a higher energy in the Higgs potential, then in a su ciently old universe we would expect the vacuum expectation value to be at the global minimum. The absence of a global minimum at higher energy is related to the condition that the Higgs self coupling is greater than or equal to zero for all energies. For any model that fails this, we expect new physics to enter before the energy at which the coupling becomes negative. We developed tools to automate the derivation of beta functions for renormalisable gauge theories, and used these to carry out evolution of the renormalisation group equations for the Standard Model and three extensions to the Standard Model | the Standard Model with a fourth generation, the Standard Model with right-handed neutrinos and a Left-Right Symmetric Model. We conclude that of these four models, the Standard Model is the only one in which all the couplings remain perturbative, and in which the Electroweak minimum is a global minimum.
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Huckvale, Benedict James. "Studying anomalous WWγ couplings and developing the global calorimeter trigger control system for the CMS experiment." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505753.

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The rate of decay of the process W -> Wγ is well-defined by the Standard Model, so measured deviation is a strong but indirect indicator of non-Standard Model physics. Deviations of this coupling strength can be parameterized, in a model independent, general sense, into two parameters, Δk and λ.
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Goudet, Christophe. "Calibration of the Electromagnetic Calorimeter of the ATLAS Experiment and Application to the Measurement of (BE)H Boson Couplings in the Diphoton Channel with Run 2 Data of the LHC." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS304/document.

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La découverte du boson de Higgs en 2012 a été un des principaux succès du run 1 du LHC. Une ère de mesures de précision a alors débuté à la recherche de déviations par rapport au Modèle Standard (MS), qui seraient des indices quant à la physique au-delà du MS.Ce manuscrit s'intéresse en premier lieu à l'étalonnage du calorimètre électromagnétique de l'expérience ATLAS. L'étape finale de cet étalonnage utilise la distribution en masse du boson Z pour corriger l'énergie mesurée des électrons et des photons. Des recommandations pour le démarrage du run 2 ont été produites afin de fournir des constantes de correction pour aux premières analyses. Les corrections utilisant les données du run 2 ont également été mesurées. Les performances de l'étalonnage du run 1 ont été atteintes puis améliorées : l'incertitude systématique sur le terme constant de la résolution du calorimètre électromagnétique, dominante pour la mesure des couplages du boson de Higgs au run 1, a été divisée par 3. La mesure des couplages du boson de Higgs consiste en la mesure de la forme du signal résonnant sur un bruit de fond décroissant. Cette mesure est effectuée de manière corrélée entre différentes catégories, optimisées pour différents modes de production à travers l'identification d'objets produits avec le boson de Higgs. Les résultats ont été obtenus à partir de 36 fb$^{-1}$ de données récoltées en 2015 et 2016 à une énergie de $sqrt{s}$=13 TeV. Le rapport ($mu$) de la mesure de la section efficace inclusive du boson de Higgs sur sa valeur dans le MS a été mesuré. Aucune déviation significative par rapport au MS n'a été observée. $$mu = 0.99 pm 0.14$$Les rapports des principaux modes de production ont également été mesurés :$$mu_{ggH} = 0.80 pm 0.18$$$$mu_{VBF} = 2.1 pm 0.66$$$$mu_{VH} = 0.7 pm 0.85$$$$mu_{ttH+tH} = 0.5 pm 0.62$$
The discovery of the Higgs boson was a major success of the run 1 of the LHC. The era of precision measurements began as any deviation from the expected Standard Model value would be a direct hint of new physics beyond the standard model. This thesis has a first focus on the calibration of the electromagnetic calorimeter of the ATLAS experiment. The final step of this calibration uses the knowledge of the line shape of the Z boson in order to correct the measured energy of electrons and photons. Recommendations for the beginning of run 2 have been given to provide calibration constants for early analyses. Run 2 calibration constants have been computed and the performances of run 1 have been reached and improved : the systematic uncertainty on the resolution constant term of the electromagnetic calorimeter, which was dominant for the Higgs boson couplings measurement at run 1, has been divided by a factor 3.The measurement of the H boson couplings consists in measuring the shape of the resonant signal over a smooth decreasing background in categories optimized for various processes, by tagging the objects produced in association with the Higgs boson. The results are based on 36 fb$^{-1}$ of data recorded in 2015 and 2016 at $sqrt{s}$=13 TeV. The ratio of the measured production cross-sections of the Higgs boson over the SM expected value ($mu$) has been measured. No significant deviation with respect to the SM has been observed.$$mu = 0.99 pm 0.14$$The ratios of the main production processes have also been measured:$$mu_{ggH} = 0.80 pm 0.18$$$$mu_{VBF} = 2.1 pm 0.66$$$$mu_{VH} = 0.7 pm 0.85$$$$mu_{ttH+tH} = 0.5 pm 0.62$$
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Biekötter, Anke [Verfasser], and Tilman [Akademischer Betreuer] Plehn. "Know its limits - A global view on Higgs couplings at the LHC / Anke Biekötter ; Betreuer: Tilman Plehn." Heidelberg : Universitätsbibliothek Heidelberg, 2019. http://d-nb.info/1192373111/34.

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Scifo, Estelle. "Measurement of the Brout-Englert-Higgs boson couplings in its diphoton decay channel with the ATLAS detector at the LHC." Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01064955.

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After the Higgs boson discovery in the first LHC data, the focus is now on its properties measurement. Among these properties, its couplings are of particular importance since any deviation from the expected value can be an indication of new physics, beyond the Standard Model. This thesis is oriented towards the Higgs couplings measurements with the ATLAS experiment, using the diphoton decay channel. Selected diphoton events are classified into different categories to disentangle the five Higgs production modes by tagging the objects produced in association with the Higgs boson: two jets for the VBF production mode, lepton and missing transverse energy for the higgsstrahlung (WH and ZH), b-jets for ttH, the remaining events being mostly produced via the dominant production mode ggH. The impact of the Higgs pT modelling in the ggH production mode is also investigated. Theoretical developments provide predictions of the pT shape at NNLO+NNLL accuracy, including top and bottom mass effects in the loop up to NLO+NLL, implemented in the HRes program. A reweighting technique to take into account these latest theoretical improvements is derived, taking into consideration the correlation with the number of jets. Its impact on the final measurement is estimated to be of the order of a few percent. The final couplings results, measured at the Higgs mass obtained by the combination of the H->gamma gamma and H->ZZ*->4l channels in ATLAS (mH = 125.4 +/- 0.4 GeV) do not show any statistically significant deviation from the Standard Model. The observed signal strength mu = sigma^{obs} / sigma^{exp} is found to be: mu = 1.17^{+0.28}_{-0.25} = 1.17 +/- 0.23(stat) ^{+0.10}_{-0.08}(syst) ^{+0.12}_{-0.08}(theory). The ratio of the observed number of events in each production mode to the expected ones are measured at: mu_ggH = 1.32 +/- 0.32(stat.) ^{+0.13}_{-0.09}(syst.) ^{+0.19}_{-0.11}(theory) ; mu_VBF = 0.8 +/- 0.7(stat.) ^{+0.2}_{-0.1}(syst.) ^{+0.2}_{-0.3}(theory) ; mu_WH = 1.0 +/- 1.5(stat.) ^{+0.3}_{-0.1}(syst.) ^{+0.2}_{-0.1}(theory) ; mu_ZH = 0.1 ^{+3.6}_{-0.1}(stat.) ^{+0.7}_{-0.0}(syst.) ^{+0.1}_{-0.0}(theory) ; mu_ttH = 1.6 ^{+2.6}_{-1.8}(stat.) ^{+0.6}_{-0.4}(syst.} ^{+0.5}_{-0.2}(theory)
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Delgove, David. "Mesure des propriétés du boson de Higgs avec l'expérience ATLAS au LHC." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS316/document.

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Dans cette thèse, je présente ma contribution à l'étude des propriétés du boson de Higgs. Mon travail a consisté à combiner les différentes analyses de recherche du boson de Higgs prévu par le modèle standard pour en extraire une mesure des taux de productions, de désintégrations et des couplages. Par exemple, le taux de production inclusif du boson de Higgs mesuré avec le détecteur ATLAS a été mesuré. Ces mesures peuvent également s'interpréter dans le contexte de modèle au-delà du modèle standard telle que les modèles composites ou les modèles de type MSSM avec le hMSSM. J'ai également participé à l'étude des performances d'un algorithme de particle flow dans le cadre de la recontruction de jets possédant un grand rayon. Mes contributions aux analyses de recherche d'un boson de Higgs pseudo-scalaire se désintégrant en un boson Z et un boson de Higgs et la recherche du boson produit en association avec un boson Z et se désintégrant en une paire de quarks b sont également montrées
In this thesis, I show my contribution to the study of the properties of the Higgs boson. My work has consisted in combining the different searches of the Standard Model Higgs boson to measure the rate of production, decay and the couplings. For example, the overall rate of production measured with the ATLAS dectector has been measured. These measurements can also be interpreted in the constext of models beyond the standard model such that composite models or models inspired from the MSSM (hMSSM). I have also participated to the studies of the performance of a particle flow algorithm to reconstruct the jet with a large radius. My contribution to the search of a pseudoscalar Higgs boson decaying into a Z boson and a Higgs boson and the search of the standard model Higgs boson produced in association with a Z boson and decaying into a pair of b quarks are also shown
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Hackstein, Christoph [Verfasser], and G. [Akademischer Betreuer] Quast. "Searches for the Higgs Boson at the LHC Based on its Couplings to Vector Bosons / Christoph Hackstein. Betreuer: G. Quast." Karlsruhe : KIT-Bibliothek, 2011. http://d-nb.info/1014279445/34.

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Books on the topic "Higgs couplings"

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Dickinson, Jennet Elizabeth. ATLAS Measurements of the Higgs Boson Coupling to the Top Quark in the Higgs to Diphoton Decay Channel. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86368-5.

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Dickinson, Jennet. ATLAS Measurements of the Higgs Boson Coupling to the Top Quark in the Higgs to Diphoton Decay Channel. Springer International Publishing AG, 2021.

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Dickinson, Jennet Elizabeth. ATLAS Measurements of the Higgs Boson Coupling to the Top Quark in the Higgs to Diphoton Decay Channel. Springer International Publishing AG, 2022.

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Book chapters on the topic "Higgs couplings"

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Jenni, Peter, and Tejinder S. Virdee. "The Discovery of the Higgs Boson at the LHC." In Particle Physics Reference Library, 263–309. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38207-0_6.

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AbstractIn July 2012 the ATLAS and CMS experiments announced the discovery of a Higgs boson, confirming the conjecture put forward in the 1960’s. This article briefly traces the history of the Brout-Englert-Higgs mechanism, its impact on the elucidation of the standard model, the design and construction of the ATLAS and CMS experiments, and finally the discovery of the Higgs boson. The article outlines some of the challenges faced during the construction of the Large Hadron Collider and its experiments, and their operation and performance. In particular, recent results relating to the properties and couplings of the Higgs boson will be discussed as well future prospects at the LHC.
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Banerjee, Avik. "Modified Higgs Couplings in the Minimal Composite Higgs Model and Beyond." In Springer Proceedings in Physics, 383–89. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4408-2_54.

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Dickinson, Jennet Elizabeth. "Higgs Couplings in $$H\rightarrow \gamma \gamma $$." In ATLAS Measurements of the Higgs Boson Coupling to the Top Quark in the Higgs to Diphoton Decay Channel, 183–98. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86368-5_13.

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Yue, Jason Tsz Shing. "Probing $$\mathcal {CP}$$ -violating Top-Yukawa Couplings at the LHC." In Higgs Properties at the LHC, 41–73. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63402-9_3.

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Altarelli, Guido, and Stefano Forte. "The Standard Model of Electroweak Interactions." In Particle Physics Reference Library, 35–81. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38207-0_3.

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AbstractIn this chapter, we summarize the structure of the standard EW theory and specify the couplings of the intermediate vector bosons W±, Z and of the Higgs particle with the fermions and among themselves, as dictated by the gauge symmetry plus the observed matter content and the requirement of renormalizability
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Lin, Guey-Lin. "Probing Flavour-Changing Neutral Higgs Couplings at LHC and NLC." In International Europhysics Conference on High Energy Physics, 1186–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-59982-8_228.

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Jackson Kimball, Derek F., Leanne D. Duffy, and David J. E. Marsh. "Ultralight Bosonic Dark Matter Theory." In The Search for Ultralight Bosonic Dark Matter, 31–72. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95852-7_2.

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AbstractThe basic theoretical concepts motivating the hypothesis that dark matter may consist of ultralight spin-0 or spin-1 bosons are explored. The origin of bosons with masses ≪ 1 eV from spontaneous and explicit symmetry breaking is illustrated with examples. The origins and characteristics of nongravitational couplings or “portals” between ultralight bosons and Standard Model particles and fields are considered, with particular attention paid to the cases of the axion-photon and axion-fermion interactions. Theoretical motivations for the existence of ultralight bosons, besides as an explanation of dark matter, are examined, with particular focus on the Peccei-Quinn solution to the strong CP problem (resulting in the QCD axion) and a dynamical solution to the hierarchy problem (the “relaxion” hypothesis, based on a particular axion-Higgs coupling in the early universe). Mechanisms for non-thermal production of ultralight bosonic dark matter are examined.
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Sarmah, Priyanka, Kumar Rao, and Saurabh D. Rindani. "Polarization of Z Boson as a Probe of Anomalous Gauge-Higgs Couplings." In Springer Proceedings in Physics, 213–17. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6292-1_26.

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Ramesh, Rashmi. "SM Higgs Exclusion and Anomalous Spin Zero HVV Couplings of the Higgs Boson in Proton Collisions at 7 TeV and 8 TeV." In Springer Proceedings in Physics, 219–21. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-21191-6_22.

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Kretzschmar, Linn. "Leveraging the Economic Potential of FCC’s Technologies and Processes." In The Economics of Big Science, 85–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52391-6_12.

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Abstract An international consortium of more than 150 organizations worldwide is studying the feasibility of various future particle colliders to expand our understanding of the inner workings of the Universe. At the core of the Future Circular Collider (FCC) study is the design of a 100 km long circular particle collider infrastructure that could extend CERN’s current accelerator complex with an integral research program that spans 70 years. The first step would be an intensity-frontier electron-positron collider allowing to study with precision the Higgs couplings with many of the Standard Model particles and search with high-precision for new physics while the ultimate goal is to build a proton collider with a c.m.s collision energy seven times larger than the Large Hadron Collider. Hosted in the same tunnel and profiting from the new infrastructure, FCC-hh would allow to explore a new energy regime where new physics may be at play.
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Conference papers on the topic "Higgs couplings"

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Bonanomi, Matteo. "Higgs couplings combination at CMS." In 41st International Conference on High Energy physics. Trieste, Italy: Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.414.0506.

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Cadamuro, Luca. "Higgs boson couplings and properties." In 7th Annual Conference on Large Hadron Collider Physics. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.350.0101.

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IBRAHIM, TAREK, and ANASTASIOS PSINAS. "EFFECTIVE LAGRANGIAN FOR CHARGED HIGGS COUPLINGS." In Proceedings of the 10th International Symposium. World Scientific Publishing Company, 2005. http://dx.doi.org/10.1142/9789812701756_0085.

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Wang, LianTao. "Higgs couplings and Electroweak Precision data." In 14th International Conference on B-Physics at Hadron Machines. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.190.0003.

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Venturi, Nicola. "Higgs couplings and properties with ATLAS." In XXII. International Workshop on Deep-Inelastic Scattering and Related Subjects. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.203.0121.

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Buonincontri, Laura, Paolo Andreetto, Nazar Bartosik, Massimo Casarsa, Alessio Gianelle, Donatella Lucchesi, and Lorenzo Sestini. "Higgs boson couplings at muon collider." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.398.0619.

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Tian, Junping, and K. Fujii. "Measurement of Higgs couplings and self-coupling at the ILC." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2014. http://dx.doi.org/10.22323/1.180.0316.

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Gutiérrez-Rodríguez, A., M. A. Hernández-Ruíz, O. A. Sampayo, A. Chubykalo, A. Espinoza, Heriberto Castilla-Valdez, Omar Miranda, and Eli Santos. "Trilinear Self-Couplings of MSSM Higgs Bosons." In PARTICLES AND FIELDS: XI Mexican Workshop on Particles and Fields. AIP, 2008. http://dx.doi.org/10.1063/1.2965058.

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Mahmoudi, Farvah, Alexandre Arbey, Marco Battaglia, Abdelhak Djouadi, Margarete Mühlleitner, and Michael Spira. "Higgs couplings: constraints and sensitivity on Supersymmetry." In 40th International Conference on High Energy physics. Trieste, Italy: Sissa Medialab, 2021. http://dx.doi.org/10.22323/1.390.0261.

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ONYISI, Peter. "Status of Higgs Boson Couplings and Searches." In Flavor Physics & CP Violation 2015. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.248.0023.

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Reports on the topic "Higgs couplings"

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Chapon, Emilien. Search for the Higgs Boson and for Anomalous Quartic Gauge Boson Couplings in the WW Channel with Dielectron Events with the D0 Experiment at the Tevatron; Recherche du boson de Higgs et de couplages de jauge quartiques anormaux dans le canal WW en électrons dans l'expérience D0 au Tevatron. Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1128224.

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Grenert, Austin, Mia Liu, and Aashaq Shah. Probing the Tri-Linear Higgs Self-Coupling. Office of Scientific and Technical Information (OSTI), August 2019. http://dx.doi.org/10.2172/1637624.

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Barklow, T. Higgs Coupling Measurements at a 1 TeV Linear Collider. Office of Scientific and Technical Information (OSTI), December 2003. http://dx.doi.org/10.2172/826737.

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Conway, Alexander, Hans Wenzel, Ronald Lipton, and Estia Eichten. Measuring the Higgs Self-Coupling Constant at a Multi-TeV Muon Collider. Office of Scientific and Technical Information (OSTI), May 2014. http://dx.doi.org/10.2172/1156516.

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DAI, YANG, ALEXEY B. BORISOV, KEITH BOYER, and CHARLES K. RHODES. Computation with Inverse States in a Finite Field FP: The Muon Neutrino Mass, the Unified Strong-Electroweak Coupling Constant, and the Higgs Mass. Office of Scientific and Technical Information (OSTI), August 2000. http://dx.doi.org/10.2172/761963.

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