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Associated production of a Higgs boson with a heavy, i.e. top or bottom, quark-anti-quark pair provide observation channels for Higgs bosons at the LHC which can be used to measure the respective Yukawa couplings. For the light…

高能物理 - 唯象学 · 物理学 2008-11-26 Wolfgang Hollik , Michael Rauch

The optimal procedure for extracting the coefficients of different components of a cross section which takes the form of unknown coefficients times functions of known kinematical form is developed. When applied to $\epem\to t\anti t+$Higgs…

高能物理 - 唯象学 · 物理学 2009-10-28 J. F. Gunion , B. Grzadkowski , X. -G. He

The most recent LHC data have provided a considerable improvement in the precision with which various Higgs production and decay channels have been measured. Using all available public results from ATLAS, CMS and the Tevatron, we derive for…

高能物理 - 唯象学 · 物理学 2013-10-30 G. Belanger , B. Dumont , U. Ellwanger , J. F. Gunion , S. Kraml

During the 2014 Summer Conferences, both ATLAS and CMS Collaborations of the LHC experiments have demonstrated tremendous efforts in treatment of data and processing more data such that most data on signal strengths have improved;…

高能物理 - 唯象学 · 物理学 2014-11-19 Kingman Cheung , Jae Sik Lee , Po-Yan Tseng

The production of a Higgs boson in association with a $Z$ at an electron-positron collider is one of the cleanest methods for the measurement of the couplings of the Higgs boson. In view of the large production cross section at energies a…

高能物理 - 唯象学 · 物理学 2023-04-28 Kumar Rao , Saurabh D. Rindani , Priyanka Sarmah , Balbeer Singh

The possibility to observe a Higgs boson having a mass between 300 and 600 GeV and to measure its couplings to vector bosons and top quark with CMS at the LHC is studied. Six different signatures are analyzed. The possibility to separate…

高能物理 - 实验 · 物理学 2009-09-25 A. -S. Nicollerat

The LHC has been built to understand the dynamics at the origin of the breaking of the electroweak symmetry. Weakly coupled models with a fundamental Higgs boson have focused most of the attention of the experimental searches. We will…

高能物理 - 唯象学 · 物理学 2015-06-04 J. R. Espinosa , C. Grojean , M. Muehlleitner

The strategies recently developed to study Higgs boson properties at the LHC are reviewed. It is shown how to obtain model-independent determinations of couplings to fermions and gauge bosons by exploiting different production and decay…

高能物理 - 唯象学 · 物理学 2011-09-13 Mauro Moretti

This paper discusses some aspects of the estimates of Higgs boson coupling sensitivities for LHC and ILC presented at the Snowmass 2013 meeting. I estimate the measurement accuracies underlying the CMS presentation to Snowmass. I present…

高能物理 - 唯象学 · 物理学 2014-02-04 Michael E. Peskin

The LHC may be currently seeing the first hints of the Higgs boson. The dominant production mode for the Higgs at the LHC involves a top-quark loop. An accurate measurement of Higgs production cross-sections and decay widths can thus be…

高能物理 - 唯象学 · 物理学 2012-11-28 Debajyoti Choudhury , Pratishruti Saha

We consider the Higgs boson decay processes and its production including all Run I results, through a parametrisation tailored for testing models of new physics beyond the Standard Model, and complementary to the one used by the LHC working…

高能物理 - 唯象学 · 物理学 2015-04-30 Jean-Baptiste Flament

LEP precision on electroweak measurements was sufficient not to hamper the extraction of Higgs couplings at the LHC. But the foreseen permille-level Higgs measurements at future lepton colliders might suffer from parametric electroweak…

高能物理 - 唯象学 · 物理学 2020-09-11 Jorge de Blas , Gauthier Durieux , Christophe Grojean , Jiayin Gu , Ayan Paul

Interpretations of Higgs searches critically involve production cross sections and decay probabilities for different analysis channels. Mixing effects can reduce production rates, while invisible decays can reduce decay probabilities. Both…

高能物理 - 唯象学 · 物理学 2015-06-03 Christoph Englert , Tilman Plehn , Michael Rauch , Dirk Zerwas , Peter M. Zerwas

The coupling properties of the Higgs boson are studied in the four-lepton decay channel using 36.1 fb$^{-1}$ of $pp$ collision data from the LHC at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. Cross sections are…

高能物理 - 实验 · 物理学 2018-05-22 ATLAS Collaboration

The production of a Higgs boson in association with a single top quark is one of a few channels which are sensitive for not yet excluded anomalous couplings of the Higgs boson to fermions. Multivariate analysis tools are used for the…

高能物理 - 实验 · 物理学 2015-03-19 Simon Fink

The Higgs discovery has given us the Higgs-gauge sector as a new handle to search for physics beyond the Standard Model. This includes physics scenarios originally linked to massive gauge boson scattering at high energies. We investigate…

高能物理 - 唯象学 · 物理学 2014-10-01 Johann Brehmer , Joerg Jaeckel , Tilman Plehn

I review the idea of realizing the Higgs as a composite pseudo-Nambu-Goldstone boson of a new strongly-interacting sector and collect major constraints on the parameter space of minimal models. Besides limits from electroweak precision…

高能物理 - 唯象学 · 物理学 2022-09-21 Florian Goertz

Recent progress in Higgs boson studies for the International e+e- Linear Collider (ILC) is reported. These studies include extended simulations of the measurement of the Higgs mass, measurements of the Higgs boson branching ratios at higher…

高能物理 - 唯象学 · 物理学 2007-05-23 Timothy L. Barklow

We explore the Higgs couplings to gauge bosons in the minimal $SO(5)/SO(4)$ 4D composite Higgs model. The pions scatterings put unitary constraints on the couplings and therefore determine the branch ratios of various Higgs decays. Through…

高能物理 - 唯象学 · 物理学 2013-08-23 Haiying Cai

The precise determination of the Higgs boson CP properties is among the most important goals for existing and future colliders. In this work, we evaluate existing constraints on the CP nature of the Higgs interaction with top quarks taking…

高能物理 - 唯象学 · 物理学 2022-06-14 Henning Bahl