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Academic literature on the topic 'HisGs'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "HisGs"

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Aklujkar, Muktak. "Two ATP phosphoribosyltransferase isozymes of Geobacter sulfurreducens contribute to growth in the presence or absence of histidine and under nitrogen fixation conditions." Canadian Journal of Microbiology 57, no. 7 (July 2011): 547–58. http://dx.doi.org/10.1139/w11-047.

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Bacteria of the Geobacter clade possess two distinct ATP phosphoribosyltransferases encoded by hisGL and hisGS+hisZ to catalyze the first reaction of histidine biosynthesis. This very unusual redundancy was investigated by mutational analysis. The hisGL, hisGS, and hisZ genes of Geobacter sulfurreducens were deleted, effects on growth and histidine biosynthesis gene expression were evaluated, and deficiencies were complemented with plasmid-borne genes. Both hisGL and hisGS+hisZ encode functional ATP phosphoribosyltransferases. However, deletion of hisGL resulted in no growth defect, whereas deletion of hisGS delayed growth when histidine was not provided. Both deletions increased hisZ transcript abundance, and both ΔhisGS and ΔhisZ mutations increased hisGL transcript abundance. Growth with HisGL alone (due to deletion of either hisGS or hisZ) was better under nitrogen fixation conditions than when ammonium was provided. Deletion of hisZ caused growth defects under all conditions tested, with or without exogenous sources of histidine, with different patterns of histidine biosynthesis gene expression under each condition. Taken together, the data indicate that G. sulfurreducens depends primarily on the HisGSZ isozyme as an ATP phosphoribosyltransferase in histidine biosynthesis, and for other functions when histidine is available; however, HisGL also functions as ATP phosphoribosyltransferase, particularly during nitrogen fixation.
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Liu, Huei-Mei, Chin-Huai Young, Der-Juinn Horng, Yih-Chearng Shiue, and Shin-Ku Lee. "Improving the Performance of a Semitransparent BIPV by Using High-Reflectivity Heat Insulation Film." International Journal of Photoenergy 2016 (2016): 1–15. http://dx.doi.org/10.1155/2016/4174216.

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Currently, standard semitransparent photovoltaic (PV) modules can largely replace architectural glass installed in the windows, skylights, and facade of a building. Their main features are power generation and transparency, as well as possessing a heat insulating effect. Through heat insulation solar glass (HISG) encapsulation technology, this study improved the structure of a typical semitransparent PV module and explored the use of three types of high-reflectivity heat insulation films to form the HISG building-integrated photovoltaics (BIPV) systems. Subsequently, the authors analyzed the influence of HISG structures on the optical, thermal, and power generation performance of the original semitransparent PV module and the degree to which enhanced performance is possible. The experimental results indicated that the heat insulation performance and power generation of HISGs were both improved. Selecting an appropriate heat insulation film so that a larger amount of reflective solar radiation is absorbed by the back side of the HISG can yield greater enhancement of power generation. The numerical results conducted in this study also indicated that HISG BIPV system not only provides the passive energy needed for power loading in a building, but also decreases the energy consumption of the HVAC system in subtropical and temperate regions.
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Yong, Taiyi. "Some Basic Properties of Higgs Bosons." Highlights in Science, Engineering and Technology 17 (November 10, 2022): 324–27. http://dx.doi.org/10.54097/hset.v17i.2622.

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Known as one of the most hopeful fields to find the new particle—Higgs bosons and become even more important after it is proved by Higgs. Higgs and his colleagues further improve their observation of the Higgs Bosons through the Higgs mechanism. This paper will show the basic properties of the Higgs bosons, and some machines of the Higgs bosons. The spontaneous symmetry breaking, and the Higgs mechanism have also been introduced due to their necessity for the Higgs boson. This paper will be an introduction for anyone who is interested in this field.
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BRUZZO, UGO, and BEATRIZ GRAÑA OTERO. "NUMERICALLY FLAT HIGGS VECTOR BUNDLES." Communications in Contemporary Mathematics 09, no. 04 (August 2007): 437–46. http://dx.doi.org/10.1142/s0219199707002526.

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After providing a suitable definition of numerical effectiveness for Higgs bundles, and a related notion of numerical flatness, in this paper we prove, together with some side results, that all Chern classes of a Higgs-numerically flat Higgs bundle vanish, and that a Higgs bundle is Higgs-numerically flat if and only if it is has a filtration whose quotients are flat stable Higgs bundles. We also study the relation between these numerical properties of Higgs bundles and (semi)stability.
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DREES, MANUEL. "SUPERSYMMETRIC MODELS WITH EXTENDED HIGGS SECTOR." International Journal of Modern Physics A 04, no. 14 (August 20, 1989): 3635–51. http://dx.doi.org/10.1142/s0217751x89001448.

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The Higgs sector of supersymmetric models with an additional SU (2)× U (1)Y singlet or an additional pair of Higgs doublet superfields is investigated. It is shown that in the model with a Higgs singlet bounds on Higgs boson masses are considerably weaker than in the minimal supersymmetric model; in particular, all neutral scalars can be heavier than about 150 GeV or lighter than [Formula: see text], whereas the mass of the charged Higgs boson is essentially unconstrained. The four doublet model resembles the minimal model more closely; in particular, the bounds for the heaviest and lightest neutral scalar and the heaviest charged Higgs boson are unaltered. In this model, many relations between masses of different Higgs bosons can be found; 44 of the 66 possible decays of one Higgs boson into another Higgs boson plus a real W or Z boson are kinematically forbidden. It is also shown that in both models, the lightest neutral scalar becomes indistinguishable from the standard model Higgs boson if all other Higgs bosons of the model are much heavier than Mw.
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Thi Le Thuy, Dao, and Le Nhu Thuc. "HIGGS BOSON PRODUCTION IN γµ− COLLISION IN THE RANDALL-SUNDRUM MODEL." Journal of Science, Natural Science 60, no. 7 (2015): 137–45. http://dx.doi.org/10.18173/2354-1059.2015-0043.

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Bian, Ligong, Ning Chen, and Yun Jiang. "Higgs pair production in the CP-violating two-Higgs-doublet model." International Journal of Modern Physics A 32, no. 34 (December 10, 2017): 1746002. http://dx.doi.org/10.1142/s0217751x17460022.

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The SM-like Higgs pair production is discussed in the framework of the general CP-violating two-Higgs-doublet model, where we find that the CP-violating mixing angles can be related to the Higgs self-couplings. Therefore, the future experimental searches for Higgs boson pairs can be constrained by the improved precision of the electric dipole moment measurements. Based on a series of constraints of the SM-like Higgs boson signal fits, the perturbative unitarity and stability bounds to the Higgs potential, and the most recent LHC searches for heavy Higgs bosons, we suggest a set of benchmark models for the future high-energy collider searches for Higgs pair production. The [Formula: see text] colliders operating at [Formula: see text] are capable of measuring the Higgs cubic self-couplings of the benchmark models directly. We also estimate the cross sections of the resonance contributions to the Higgs pair productions for the benchmark models at the future LHC and SppC/FCC-hh runs.
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Mankel, R. "Higgs searches beyond the Standard Model." International Journal of Modern Physics: Conference Series 31 (January 2014): 1460288. http://dx.doi.org/10.1142/s2010194514602889.

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While the existence of a Higgs boson with a mass near 125 GeV has been clearly established, the detailed structure of the entire Higgs sector is yet unclear. Besides the Standard Model interpretation, various possibilities for extended Higgs sectors are being considered. The minimal supersymmetric extension (MSSM) features two Higgs doublets resulting in five physical Higgs bosons, which are subject to direct searches. Alternatively, more generic Two-Higgs Doublet models (2HDM) are used for the interpretation of results. The Next-to-Minimal Supersymmetric Model (NMSSM) has a more complex Higgs sector with seven physical states. Also exotic Higgs bosons decaying to invisible final states are considered. This article summarizes recent findings based on results from collider experiments.
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Mankel, R. "Higgs searches beyond the Standard Model." International Journal of Modern Physics A 29, no. 24 (September 29, 2014): 1430057. http://dx.doi.org/10.1142/s0217751x14300579.

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While the existence of a Higgs boson with a mass near 125 GeV has been clearly established, the detailed structure of the entire Higgs sector is yet unclear. Besides the Standard Model interpretation, various possibilities for extended Higgs sectors are being considered. The minimal supersymmetric extension (MSSM) features two Higgs doublets resulting in five physical Higgs bosons, which are subject to direct searches. Alternatively, more generic Two-Higgs Doublet models (2HDM) are used for the interpretation of results. The Next-to-Minimal Supersymmetric Model (NMSSM) has a more complex Higgs sector with seven physical states. Also exotic Higgs bosons decaying to invisible final states are considered. This article summarizes recent findings based on results from collider experiments.
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QIN, XIN, and YAO-BEI LIU. "TRIPLE HIGGS BOSON PRODUCTION AT THE ILC IN THE LEFT–RIGHT TWIN HIGGS MODEL." International Journal of Modern Physics A 27, no. 06 (March 10, 2012): 1250030. http://dx.doi.org/10.1142/s0217751x12500303.

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Besides the SM-like Higgs boson h, the left–right twin Higgs (LRTH) model predicts the existence of three additional Higgs bosons: one neutral Higgs ϕ0and a pair of charged Higgs bosons ϕ±. In this paper, we focus on the study of the triple Higgs production at the ILC, i.e. e+e-→ϕ0ϕ+ϕ-and e+e-→hhϕ0. We present the production cross-sections and the distributions of the various observables, such as, the distributions of the energy and the transverse momenta of neutral and charged Higgs bosons, the differential cross-section of the invariant mass of final Higgs bosons pair, and the production angle distributions of neutral Higgs boson and charged Higgs boson. Our numerical results show that, for the processes e+e-→ϕ0ϕ+ϕ-and e+e-→hhϕ0, the production rates are at the level of 10-1fb with reasonable parameter values while the resonance production cross-section can be significantly enhanced and reach several tens fb. The signatures for signals and corresponding standard model backgrounds are also investigated for the decay mode [Formula: see text].
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Dissertations / Theses on the topic "HisGs"

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Hamada, Yuta. "Higgs potential and naturalness after the Higgs discovery." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215312.

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Gu, Jiayin, Honglei Li, Zhen Liu, Shufang Su, and Wei Su. "Learning from Higgs physics at future Higgs factories." SPRINGER, 2017. http://hdl.handle.net/10150/626569.

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Future Higgs factories can reach impressive precision on Higgs property measurements. In this paper, instead of conventional focus of Higgs precision in certain interaction bases, we explore its sensitivity to new physics models at the electron-positron colliders. In particular, we study two categories of new physics models, Standard Model (SM) with a real scalar singlet extension, and Two Higgs Double Model (2HDM) as examples of weakly-interacting models, Minimal Composite Higgs Model (MCHM) and three typical patterns of the more general operator counting for strong interacting models as examples of strong dynamics. We perform a global fit to various Higgs search channels to obtain the 95% C.L. constraints on the model parameter space. In the SM with a singlet extension, we obtain the limits on the singlet-doublet mixing angle sin theta, as well as the more general Wilson coefficients of the induced higher dimensional operators. In the 2HDM, we analyze tree level effects in tan beta vs. cos(beta-alpha) plane, as well as the one-loop contributions from the heavy Higgs bosons in the alignment limit to obtain the constraints on heavy Higgs masses for different types of 2HDM. In strong dynamics models, we obtain lower limits on the strong dynamics scale. In addition, once deviations of Higgs couplings are observed, they can be used to distinguish different models. We also compare the sensitivity of various future Higgs factories, namely Circular Electron Positron Collider (CEPC), Future Circular Collider (FCC)-ee and International Linear Collider (ILC).
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Schildt, Erik. "Higgs inflation." Thesis, Uppsala universitet, Teoretisk fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355063.

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In this project a recent model of inflation in which the Standard Model Higgs field with a nonminimal coupling to gravity takes on the role of the inflaton field is investigated. The tensor to scalar ratio, spectral index and the running of the spectral index  is calculated for a tree level analysis and compared with the Planck experiment. The value of the nonminimal coupling constant $\xi$ is estimated by obtaining a relation between the amplitude of scalar perturbations and the Higgs mass, it is found that $\xi \sim 10^4$. The basic aspects of how the results are modified through quantum corrections and what the consequences of the nonminimal coupling are for the effective field theory description is discussed. It is found that a tree level analysis yields predictions which are inside the allowed regions of the cosmological parameters given by the Planck experiment. The large value of the nonminimal coupling leads to unitarity problems for this model of inflation.  However quantum effects will have a significant effect and how they modify the results of the tree level analysis is what decides if Higgs inflation is a viable theory.
I detta projekt undersöker vi en modell av kosmisk inflation där Higgsfältet med en ickeminimal koppling till tyngdkraften är mekanismen bakom inflation. Vi utför en klassisk analys och beräknar modellens föresägelser för ett antal kosmologiska parametrar som jämförs med Planck experimentet. Vi uppskattar värdet på den ickeminimala kopplingen $\xi$ och finner att $\xi \sim 10^4$. De grundläggande aspekterna bakom kvantanalysen samt vad effekten av den ickeminimala kopplingen har på beskrivningen i termer av en effektiv fältteori diskuteras. Vi finner att en klassisk analys ger förutsägelser som passar väl med Planckexperimentet men att den ickeminimala kopplingen leder till unitaritetsproblem för denna modell av inflation. Kvanteffekter kan dock ha en avsevärd effekt på resultat och en utförlig analys som tar dem till hänsyn krävs för att avgöra om Higgsinflation är en möjlig modell för inflation.
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Kling, Felix, and Felix Kling. "Exotic Higgs Decays." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/620861.

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Many models of physics beyond the Standard Model include an extended Higgs sector, responsible for electroweak symmetry breaking, and predict the existence of additional Higgs bosons. The Type II Two-Higgs-Doublet Model (2HDM) is a particularly well motivated scenario and a suitable framework for phenomenological studies of extended Higgs sectors. Its low energy spectrum includes two CP-even Higgses h and H, one CP-odd Higgs A, and a pair of charged Higgses H±. We study the implication of the LHC Higgs search results on the Type II 2HDM and identify regions of parameter space which are consistent with all experimental and theoretical constraints and can accommodate the observed 125 GeV Higgs signal. This includes parameter space with a distinctive mass hierarchy which permit a sizable mass splitting between the undiscovered non-Standard Model Higgs states. If this mass splitting is large enough, exotic Higgs decay channels into either a Higgs plus a Standard Model gauge boson or two lighter Higgses open up. This can significantly weaken the reach of the conventional Higgs decay channels into Standard Model particles but also provide the additional opportunity to search for exotic Higgs decay channels. We provide benchmark planes to explore exotic Higgs decay scenarios and perform detailed collider analyses to study the exotic decay channels H/A -> AZ/HZ and H± -> AW/HW. We find that these exotic decays offer complementary discovery channels to the conventional modes for both neutral and charged Higgs searches and permit exclusion and discovery in large regions of parameter space.
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Akeroyd, Andrew Gerard. "Signals of non-minimal Higgs sectors at future colliders." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5288/.

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This thesis concerns the study of extended Higgs sectors at future colliders. Such studies are well motivated since enlarged Higgs models are a necessity in many extensions of the Standard Model (SM), although these structures may be considered purely in the context of the SM, to be called the 'non-minimal SM'. The continuous theme of the thesis is the task of distinguishing between the (many) theoretically sound non-minimal Higgs sectors at forthcoming colliders. If a Higgs boson is found it is imperative to know from which model it originates. In particular, the possible differences between the Higgs sectors of the Minimal Supersymmetric Standard Model (MSSM) and the non-minimal SM are highlighted. Considered first are the detection prospects of light charged Higgs scalars (H(^±)) at e(^+)e(^-) colliders. The discovery of a H(^±) would provide unambiguous evidence for a non- minimal Higgs sector. We show that in certain (but not all)non-minimal models a light H(^±) may exist i.e. be within the mass range accessible at LEP2 (M(_H)(_ ±) ≤ Mw). In particular the MSSM requires M(_H±) ≥ Mw, and thus detection of a at LEP2 is strong evidence against the MSSM. We discuss ways of distinguishing between the models which may contain a light H(^±) by exploiting differences in the decay channels. Attention is then given to the neutral Higgs bosons of the non-minimal SM. It is possible that these particles may possess a greatly different phenomenology to that of the mammal SM and MSSM, and we explore the feasibility of observing these differences at LEP2 and the LHC It is found that distinct, sometimes spectacular signatures are possible. The thesis next considers a more exotic Higgs representation, namely that of Higgs triplets, and compares its phenomenology at LEP2 with that of the non-minimal models covered thus far The phenomenon of Higgs bosons decoupling from the fermions(fermiophobia) arises naturally in the above triplet model, and this concept is studied in more depth in the final chapter. It is emphasized that such particles are not possible in the MSSM.
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Lowe, A. P. "Lattice gauge-Higgs theories." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378268.

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You, Tiann-Tevong. "Characterising the Higgs Boson." Thesis, King's College London (University of London), 2016. https://kclpure.kcl.ac.uk/portal/en/theses/characterising-the-higgs-boson(1ca43424-ea36-4bc6-be29-ac9e306249fe).html.

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On July 2012 the ATLAS and CMS collaborations announced the historic discovery of a Higgs boson at the CERN Large Hadron Collider. A remarkable century exploring Nature's sub- atomic constituents led to the Standard Model (SM) of particle physics with the Higgs as the last missing piece. In this thesis we review the construction of this theory and its experimental successes, focusing on the Higgs sector responsible for electroweak symmetry breaking and providing mass to matter and force particles. The de ning signature of a Higgs particle is that of a scalar coupling proportionally to mass. We show how early data suggests indirectly that the observed particle has spin zero, and propose a method for directly measuring the spin using an invariant mass distribution of the Higgs produced in association with a vector boson. We also perform a global analysis of its couplings before and after the discovery, testing the expected mass-proportionality and constraining models in which the Higgs may be composite or even another scalar entirely, such as a pseudo-dilaton. In the absence of any signi cant deviations from the properties of the SM Higgs boson, the SM is then treated as an e ective eld theory (EFT) assuming new physics beyond the SM (BSM) is decoupled at higher energies. The leading lepton-number-conserving operators arise at the dimension-6 level, parametrised by their Wilson coecients. These are constrained by their e ects in Higgs physics, triple-gauge coupling measurements, and electroweak precision tests. The coecients may also be calculated in a speci c BSM theory by integrating out heavy particles. We illustrate this in the case of stops and sbottoms in the minimally supersymmetric SM, using the covariant derivative expansion method and generalising the universal one-loop e ective Lagrangian in the process. Finally the potential for discovering BSM physics at future colliders is investigated. We conclude with a summary and outlook on prospects for the future.
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Blaavand, Jakob Lindblad. "The Dirac-Higgs bundle." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:6e081810-f042-4b3e-9f7c-9eee3c930c35.

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The Dirac-Higgs bundle is a vector bundle with a natural connection on the moduli space of stable Higgs bundles on a compact Riemann surface. It is a vector bundle of null-spaces of a Dirac-operator coupled to stable Higgs bundles. In this thesis, we study various aspects of this bundle and its natural connection. The Dirac-Higgs bundle is hyperholomorphic on the smooth hyperkähler moduli space of stable Higgs bundles. This property is a generalisation of the four-dimensional anti- self-duality equations to hyperkähler manifolds. One use of the Dirac-Higgs bundle is the construction of a Nahm transform for Higgs bundles. This transform produces hyperholo- morphic bundles on the moduli space of rank one Higgs bundles. The Higgs bundle moduli space is non-compact and we study the asymptotics of the connection in the Nahm transform of a Higgs bundle. We show that elements of the null- spaces concentrate at a finite number of points on the Riemann surface. This asymptotical behaviour naturally defines a frame for the Nahm transform, which is conjectured to be asymptotically unitary. By considering only the holomorphic structure, the Nahm transform of a Higgs bundle extends to a holomorphic bundle on the natural compactification of the rank one Higgs bundle moduli space. We discuss various aspects of this extended holomorphic bundle. Most importantly, it is a sheaf extension in which the constituent sheaves and the extension class have natural interpretations in terms of the original Higgs bundle. Furthermore, the extended bundle is not fixed at the divisor at infinity; explicit examples show that it depends on the type of Riemann surface, for example. The Dirac-Higgs bundle has a parabolic cousin. In the parabolic case the rank depends on the number of marked points and the total multiplicity of the zero weights in the parabolic structure. The moduli space of stable rank two parabolic Higgs bundles on the Riemann sphere with four marked points has complex dimension two. Furthermore, there is a combination of parabolic weights such that the Dirac-Higgs bundle is a line bundle with an instanton connection. We study the topology of this line bundle and find that the instanton does not have finite energy. As in the non-parabolic case we define a Nahm transform for parabolic Higgs bundles, and in the case of genus one Riemann surfaces use it to produce doubly-periodic instantons of finite energy.
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Braathen, Johannes. "Automating Higgs precision calculations." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS073/document.

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L’étude des propriétés du boson de Higgs représente une excellente opportunité pour la recherche de Nouvelle Physique. En particulier, sa masse est mesurée avec une précision impressionnante, de l’ordre de 0.1%, tandis qu’elle est aussi prédite par certains modèles au-delà du Modèle Standard, notamment les modèles supersymétriques. Le but de cette thèse est de faire avancer le calcul des corrections radiatives aux masses des scalaires dans les modèles au-delà du Modèle Standard, ainsi que l’automatisation de ces calculs, afin d’établir ou d’améliorer les limites sur les couplages entre la Nouvelle Physique et le boson de Higgs. Nous calculons d’abord les corrections dominantes à deux boucles, de la forme O(alpha_s alpha_t), aux masses des scalaires neutres dans les modèles supersymétriques à jauginos de Dirac. Ensuite, nous montrons comment surmonter la Catastrophe des Bosons de Goldstone, un cas de divergences infrarouges dues aux bosons de Goldstones de masses nulles qui affecte les calculs de potentiels effectifs, d’équations « tadpoles » et d’énergies propres, en adoptant un schéma de renormalisation « on-shell » pour les masses des bosons de Goldstone. Nous illustrons la mise en œuvre numérique de notre solution dans le programme SARAH, et finalement, nous considérons le comportement aux hautes énergies de modèles non-supersymétriques avec des secteurs scalaires étendus
The Standard Model-like Higgs boson provides an excellent setting for the indirect search of New Physics, through the study of its properties. In particular its mass is now measured with an astonishing precision, of the order of 0.1%, while being predicted in some models of Beyond the Standard Model (BSM) Physics, such as supersymmetric (SUSY) models. The main purpose of this thesis is to push further the calculation of radiative corrections to Higgs boson masses in BSM models, as well as the automation of these calculations, in order to set or improve constraints on New Physics coupling to the Higgs boson. A first chapter is devoted to the computation of the leading two-loop O (alpha_s alpha_t) corrections to neutral scalar masses in SUSY models with Dirac gauginos. Then, we show to address the Goldstone Boson Catastrophe -- a case of infra-red divergences due to massless Goldstone bosons that plague the calculation of effective potentials, tadpole equations, and self-energies -- in the context of general renormalisable field theories, by adopting an on-shell renormalisation scheme for the Goldstone masses. Afterwards, we illustrate the numerical implementation of our solution to the Goldstone Boson Catastrophe in the public tool SARAH. Finally, in a last chapter, we consider the high-scale behaviour of non-supersymmetric models with extended Higgs sectors
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Kallarackal, Jim. "The Higgs boson resonance from a chiral Higgs-Yukawa model on the lattice." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16332.

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Das Higgs-Teilchen ist essentiell für die Erzeugung von Massen für Fermionen und Eich- bosonen der schwachen Wechselwirkung. Ziel dieser Arbeit ist es, die Masse und die Zerfallsbreite des Higgs-Teilchens einzugrenzen. Grundlage für die Berechnung physikalischer Größen ist dabei das Pfadintegral, welches mittels Monte-Carlo Simulationen bestimmt wird. Ein polynomieller Hybrid-Monte- Carlo-Algorithmus berücksichtigt dabei alle dynamischen Freiheitsgrade der Fermionen. Die chirale Natur der Fermionen werden mit Hilfe des Neuberger- Overlap-Operators beschrieben. In dieser Arbeit wird das Standardmodell auf den Higgs-Yukawa-Sektor eingegrenzt, welcher keine Eichbosonen enthält und lediglich ein degeneriertes Quark-Doublet berücksichtigt. Anhand des Higgs-Teilchen-Propagators werden die Ergebnisse aus der Git- terstörungsrechnung bis zu einer Schleife mit denen aus der Monte-Carlo- Simulation verglichen. Für die untersuchten Parameter, stimmen die Ergeb- nisse aus der Störungstheorie mit den Monte-Carlo-Daten sehr gut überein. Ein Schwerpunkt dieser Arbeit ist die Analyse der Resonanzparameter des Higgs-Teilchens. Die Resonanzmasse und die Resonanzbreite werden bei schwachen als auch bei starken quartischen Kopplungen untersucht. Das Higgs-Teilchen erscheint nicht als asymptotisch stabiles Teilchen, sondern als Resonanz. In allen Fällen liegt die Resonanzbreite unter 10% der Resonanzmasse. Die Resonanzmasse wird sodann mit der Propagatormasse verglichen. Für alle betrachteten Kopplun- gen gibt es eine hervorragende Übereinstimmung beider Größen. Zuletzt gilt es, den Einfluss einer schweren vierten Generation von Quarks auf die obere und untere Massenschranke des Higgs-Teilchens zu untersuchen. Alle numerischen Resultate involvieren eine umfassende Analyse der Volu- menabhängigkeit und erfordern zwingend eine Extrapolation ins unendliche Volumen.
The Higgs boson is a central part of the electroweak theory and is crucial to generate masses for fermions and the weak gauge bosons. The goal of this work is to set limits on the mass and the decay width of the Higgs boson. The basis to compute the physical quantities is the path integral which is here evaluated by means of Monte Carlo simulations thus allowing for fully non perturbative calculations. A polynomial hybrid Monte Carlo algo- rithm is used to incorporate dynamical fermions. The chiral symmetry of the electroweak model is incorporated by using the Neuberger overlap operator. Here, the standard model is considered in the limit of a Higgs-Yukawa sector which does not contain the weak gauge bosons and only a degenerate doublet of top- and bottom quarks are incorporated. Results from lattice perturbation theory up to one loop of the Higgs boson propagator are compared with those obtained from Monte Carlo simulations. At all values of the investigated couplings, the perturbative results agree very well with the Monte Carlo data. A main focus of this work is the investigation of the resonance parameters of the Higgs boson. The resonance width and the resonance mass are investigated at weak and at large quartic couplings. The Higgs boson does not appear as an asymptotic stable state but as a resonance. In all considered cases the Higgs boson resonance width lies below 10% of the resonance mass. The obtained resonance mass is compared with the mass obtained from the Higgs boson propagator. The results agree perfectly at all values of the quartic coupling considered. Finally, the effect of a heavy fourth generation of fermions on the upper and lower Higgs boson mass bound is studied. All numerical results presented in this work involve extensive finite volume analysis and an extrapolation to infinite volume is inevitable.
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Books on the topic "HisGs"

1

Eghvardetsʻi, Koryun. Hisus Kʻristos. Erevan: "Antares" SPĚ, 2001.

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Nerses. Hisus, Ordi. Erevan: "Apolon" Hratarakchʻutʻyun, 1991.

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Hamada, Yuta. Higgs Potential and Naturalness After the Higgs Discovery. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3418-3.

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Thomas. Nmanutʻiwn Hisus Kʻristosi. Erevan: S. Ghazar, 1996.

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Thomas. Nmanutʻiwn Hisus Kʻristosi. 4th ed. Pēyrutʻ: [s.n.], 1997.

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Ali, Ahmed, ed. Higgs Particle(s). Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-0908-7.

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Understanding Higgs bosons. New York: Cavendish Square Publishing, 2016.

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1943-, Gunion J. F., ed. The Higgs hunter's guide. Cambridge, Mass: Perseus, 2000.

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Johnson-Bennett, Pam. Hiss and Tell. New York: Penguin USA, Inc., 2009.

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Beaton, M. C. Hiss and hers. Bath: Windsor, 2013.

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Book chapters on the topic "HisGs"

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Weik, Martin H. "hiss." In Computer Science and Communications Dictionary, 728. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_8398.

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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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Thomas, Marc Christopher. "Supersymmetric Higgs." In Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry, 41–73. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43452-0_4.

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Rindani, Saurabh D. "Higgs Physics." In Current Perspectives in High Energy Physics, 39–88. Gurgaon: Hindustan Book Agency, 2005. http://dx.doi.org/10.1007/978-93-86279-26-2_2.

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Plehn, Tilman. "Higgs Physics." In Lectures on LHC Physics, 1–156. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05942-6_1.

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Keynes, John Maynard. "Henry Higgs." In Essays in Biography, 306–9. London: Palgrave Macmillan UK, 2010. http://dx.doi.org/10.1007/978-1-349-59074-2_19.

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Plehn, Tilman. "Higgs Physics." In Lectures on LHC Physics, 1–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-24040-9_1.

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Atkins, Michael. "Higgs Inflation." In Springer Theses, 65–78. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06367-6_4.

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Koller, Gabriele, Edek Bartz, and Gerald Bast. "Matthew Higgs." In Secret Passion, 243–75. Vienna: Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-7091-0076-9_9.

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Khalil, Shaaban, and Stefano Moretti. "Higgs Phenomenology." In Standard Model Phenomenology, 99–108. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9780429443015-9.

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Conference papers on the topic "HisGs"

1

Хурамшин, Иштимер Шагалиевич, and Рустем Иштимерович Хурамшин. "MASS AND ITS PROPERTIES." In Сборник избранных статей по материалам научных конференций ГНИИ "Нацразвитие" (Санкт-Петербург, Март 2022). Crossref, 2022. http://dx.doi.org/10.37539/mar196.2022.65.49.007.

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Обсуждается вопрос об образовании фотонных частиц с приобретением массы и заряда, а также роль бозонов Хиггса при этом. Определены причины отсутствия эквивалентности между инерционной и гравитационными массами и в то же время присутствие эквивалентности между массой и энергией. The issue of the formation of photon particles with the acquisition of mass and charge, as well as the role of Higgs bosons in this, is discussed. The reasons for the lack of equivalence between inertial and gravitational masses and at the same time the presence of equivalence between mass and energy are determined.
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Marchiori, Giovanni. "Higgs@ATLAS." In Proceedings of the Corfu Summer Institute 2015. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.263.0037.

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Brandstetter, Johannes. "Higgs properties." In Flavor Physics and CP Violation. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.280.0025.

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Bardeen, William A. "BEYOND HIGGS." In Proceedings of the International School of Subnuclear Physics. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814293242_0001.

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TELNOV, Valery. "Higgs factories." In LHC on the March. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.186.0018.

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Hawkings, Richard. "Higgs - ATLAS." In 36th International Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.174.0006.

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Shalhout, Shalhout. "Higgs - Tevatron." In 36th International Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.174.0021.

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Englert, Christoph. "Higgs Physics." In Theoretical Advanced Study Institute Summer School 2018 "Theory in an Era of Data". Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.333.0003.

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Passarino, Giampiero. "Higgs lineshape." In “Loops and Legs in Quantum Field Theory ” 11th DESY Workshop on Elementary Particle Physics. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.151.0010.

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Djouadi, Abdelhak. "Higgs Physics." In Proceedings of the Corfu Summer Institute 2014. Trieste, Italy: Sissa Medialab, 2015. http://dx.doi.org/10.22323/1.231.0018.

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Reports on the topic "HisGs"

1

Barger, V., N. G. Deshpande, J. L. Hewett, and T. G. Rizzo. A separate Higgs? Office of Scientific and Technical Information (OSTI), November 1992. http://dx.doi.org/10.2172/10145240.

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Schafer-Nameki, Sakura, Carlos Tamarit, and Gonzalo Torroba. A Hybrid Higgs. Office of Scientific and Technical Information (OSTI), August 2010. http://dx.doi.org/10.2172/992432.

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Petriello, Frank J. Constraining the Littlest Higgs. Office of Scientific and Technical Information (OSTI), November 2002. http://dx.doi.org/10.2172/808681.

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Rizzo, T. Little or No Higgs. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/833029.

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Assamagan, Ketevi, Chien-Yi Chen, John Paul Chou, David Curtin, Michael A. Fedderke, Yuri Gershtein, Xiao-Gang He, et al. The Higgs Portal and Cosmology. Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1255142.

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Green, Dan. Inflation and the Higgs Scalar. Office of Scientific and Technical Information (OSTI), December 2014. http://dx.doi.org/10.2172/1172535.

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Gunion, J. F., Z. Kunszt, and M. Soldate. A background to Higgs detection. Office of Scientific and Technical Information (OSTI), June 1985. http://dx.doi.org/10.2172/5584394.

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Robinson, Stephen Luke. Neutral Supersymmetric Higgs Boson Searches. Office of Scientific and Technical Information (OSTI), July 2008. http://dx.doi.org/10.2172/968354.

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Rowson, Peter C. Higgs Boson Discovery and Properties. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/813203.

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Cohen, Timothy, David E. Morrissey, and Aaron Pierce. Electroweak Baryogenesis and Higgs Properties. Office of Scientific and Technical Information (OSTI), March 2012. http://dx.doi.org/10.2172/1036491.

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