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Measurements of the inclusive and differential fiducial cross sections of the Higgs boson are presented, using the $\tau$ lepton decay channel. The differential cross sections are measured as functions of the Higgs boson transverse…

高能物理 - 实验 · 物理学 2022-02-28 CMS Collaboration

The recently announced Higgs discovery marks the dawn of the direct probing of the electroweak symmetry breaking sector. Sorting out the dynamics responsible for electroweak symmetry breaking now requires probing the Higgs interactions and…

高能物理 - 唯象学 · 物理学 2014-02-12 Tyler Corbett , O. J. P. Eboli , J. Gonzalez-Fraile , M. C. Gonzalez-Garcia

We derive the fully differential cross section of the Higgs-strahlung process $f \bar{f} \to Z \to Z (\to f_Z \bar{f}_Z) X (\to f_X \bar{f}_X)$, where $f$, $f_Z$, and $f_X$ are arbitrary fermions and $X$ is a spin-zero particle with…

高能物理 - 唯象学 · 物理学 2018-12-05 Taras V. Zagoskin , Alexander Yu. Korchin

Probing the properties of the discovered Higgs boson may tell us whether or not it is the same particle as the one predicted by the Standard Model. To this aim we parametrize deviations of the Higgs couplings to matter from the Standard…

高能物理 - 唯象学 · 物理学 2016-02-22 Hermes Belusca-Maito

The Higgs boson trilinear and quartic self-couplings are directly related to the shape of the Higgs potential; measuring them with precision is extremely important, as they provide invaluable information on the electroweak symmetry breaking…

Since the discovery of the Higgs boson in 2012, substantial advancements have been achieved in exploring its characteristics. The utilization of extensive data sets has facilitated recent results, enabling not only the determination of the…

高能物理 - 实验 · 物理学 2024-01-17 Walaa Elmetenawee

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 2024-09-02 Kumar Rao , Saurabh D. Rindani , Priyanka Sarmah , Balbeer Singh

We examine the effect of a general HZZ coupling through a study of the Higgs decay to leptons via Z bosons at the LHC. We discuss various methods for placing limits on additional couplings, including measurement of the partial width,…

高能物理 - 唯象学 · 物理学 2008-11-26 Rohini M. Godbole , David J. Miller , M. Margarete Mühlleitner

Most of the discussion regarding the Higgs boson couplings to Standard Model vector bosons and fermions is presented with respect to what present and future collider detectors will be able to measure. Here, we ask the more physics-based…

高能物理 - 唯象学 · 物理学 2013-05-30 Rick S. Gupta , Heidi Rzehak , James D. Wells

The idea of reduction of couplings provides a systematic procedure to search for relations among seemingly unrelated parameters of a renormalizable theory. As a consequence, such reduced theories exhibit more constrained parameter spaces.…

高能物理 - 唯象学 · 物理学 2025-02-28 Wojciech Kotlarski , Gregory Patellis

We summarize current constraints on the couplings of the Higgs boson in the framework of an effective theory beyond the Standard Model.

高能物理 - 唯象学 · 物理学 2013-11-06 Hermes Belusca-Maito , Adam Falkowski

We explore the room for possible deviations from the Standard Model (SM) Higgs boson coupling structure in a systematic study of Higgs coupling scale factor benchmark scenarios using the latest signal rate measurements from the Tevatron and…

高能物理 - 唯象学 · 物理学 2014-11-21 Philip Bechtle , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein

The Higgs self-coupling is notoriously intangible at the LHC. It was recently proposed to probe the trilinear Higgs interaction through its radiative corrections to single-Higgs processes. This approach however requires to disentangle these…

高能物理 - 唯象学 · 物理学 2017-09-22 Stefano Di Vita , Christophe Grojean , Giuliano Panico , Marc Riembau , Thibaud Vantalon

The latest results of Higgs cross section measurements from the ATLAS and CMS experiments were presented. This proceeding focuses on the production cross section measurement under the simplified template cross section framework in multiple…

高能物理 - 实验 · 物理学 2023-06-12 Rongkun Wang

We explore the new physics reach for the off-shell Higgs boson measurement in the ${pp \to H^* \rightarrow Z(\ell^{+}\ell^{-})Z(\nu\bar{\nu})}$ channel at the high-luminosity LHC. The new physics sensitivity is parametrized in terms of the…

高能物理 - 唯象学 · 物理学 2021-05-05 Dorival Gonçalves , Tao Han , Sze Ching Iris Leung , Han Qin

Despite the discovery of the Higgs boson decay in five separate channels many parameters of the Higgs boson remain largely unconstrained. In this paper, we present a new approach to constraining the Higgs total width by requiring the Higgs…

高能物理 - 唯象学 · 物理学 2019-10-08 Philip Coleman Harris , Dylan Sheldon Rankin , Cristina Mantilla Suarez

We study the uncertainties of the Higgs boson production cross section through the gluon fusion subprocess at the LHC (with $\sqrt s=7, 8$ and $14$ TeV) arising from the uncertainties of the parton distribution functions (PDFs) and of the…

高能物理 - 唯象学 · 物理学 2014-08-21 Sayipjamal Dulat , Tie-Jiun Hou , Jun Gao , Joey Huston , Pavel Nadolsky , Jon Pumplin , Carl Schmidt , Daniel Stump , C. -P. Yuan

We consider the ratio between the double and single Higgs production cross sections and examine the prospect of measuring the trilinear Higgs self-coupling using this observable. Such a ratio has a reduced theoretical (scale) uncertainty…

高能物理 - 唯象学 · 物理学 2013-09-17 Florian Goertz , Andreas Papaefstathiou , Li Lin Yang , José Zurita

After the recent discovery of the Higgs boson, the next important goal is to measure its properties. Probing the Yukawa coupling of the Higgs boson to top quarks is a particularly important test of physics beyond the standard model. This…

高能物理 - 实验 · 物理学 2019-08-13 Liis Rebane

Indirect constraints on the total Higgs width $\Gamma_h$ from correlating Higgs signal strengths with cross section measurements in the off-shell region for $p(g)p(g)\to 4\ell$ production have received considerable attention recently, and…

高能物理 - 唯象学 · 物理学 2014-09-10 Christoph Englert , Michael Spannowsky