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相关论文: Calculation of the decay ${\bm H\bm\to\bm e\bar{\b…

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Higgs boson radiative decays of the form $H\rightarrow f\bar{f}\gamma$ are calculated in the Standard Model using the complete one-loop expressions for the decay amplitudes. Contributions to the radiative width from leptons and light quarks…

高能物理 - 唯象学 · 物理学 2016-08-24 Ali Abbasabadi , David Bowser-Chao , Duane A. Dicus , Wayne W. Repko

We calculate the two body Higgs boson decays in the framework of the littlest Higgs model. The decay $H \to \gamma Z$ is computed at one loop level and, using previous results, we evaluate the branching fractions in the framework of the…

高能物理 - 唯象学 · 物理学 2014-11-17 G. A. Gonzalez-Sprinberg , R. Martinez , J. -Alexis Rodriguez

A summary of the methods used to make a precision measurement of the Higgs boson mass is presented. The final mass value for the Higgs boson is measured to be $m_{\rm H} = 125.26 \pm 0.21\ \mathrm{GeV}$. This analysis considers the…

高能物理 - 实验 · 物理学 2019-10-23 Jake Rosenzweig

Searches for the Higgs boson decays $H \to ee$ and $H \to e \mu$ are performed using data corresponding to an integrated luminosity of 139 fb$^{-1}$ collected with the ATLAS detector in $pp$ collisions at $\sqrt{s} = 13$ TeV at the LHC. No…

高能物理 - 实验 · 物理学 2020-04-01 ATLAS Collaboration

A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9 fb$^{-1}$ of proton-proton collision data collected during the 2016 LHC running period, with the CMS detector at a…

高能物理 - 实验 · 物理学 2020-04-22 CMS Collaboration

Using the Higgs boson mass $m_h=125$ GeV, the radiative Higgs decays $h\rightarrow\gamma \nu_l\bar\nu_l$ with $\nu_l = \nu_e,\,\nu_\mu$ and $\nu_\tau$ are analyzed in the standard model. Our calculation shows that the inclusive width of…

高能物理 - 唯象学 · 物理学 2014-02-05 Yi Sun , Dao-Neng Gao

We calculate the large top quark mass expansions for the H -> bb_bar decay rate in the order (alpha_s)^2 and for the H -> gluons decay rate in the order (alpha_s)^3. The obtained expansions rapidly converge in the region of their validity,…

高能物理 - 唯象学 · 物理学 2009-10-28 S. A. Larin , T. van Ritbergen , J. A. M. Vermaseren

A measurement of the mass of the Higgs boson combining the $H\to ZZ^{*} \to 4\ell$ and $H\to\gamma\gamma$ decay channels is presented. The result is based on 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS detector…

高能物理 - 实验 · 物理学 2024-01-23 The ATLAS Collaboration

We investigate the neutron to proton decay via a Higgs mechanism in the framework of a reinterpreted Kogut-Susskind Hamiltonian on the Lie group u(3). We calculate expressions for a scalar Higgs mass, an electroweak energy scale, and vector…

高能物理 - 唯象学 · 物理学 2014-05-02 Ole L. Trinhammer

In this paper we discuss decays of the Higgs boson to quarkonia in association with a photon. We identify a new mechanism for producing such final states in Higgs decays that leads to predictions for the decay rates that differ by an order…

高能物理 - 唯象学 · 物理学 2015-06-16 Geoffrey T. Bodwin , Frank Petriello , Stoyan Stoynev , Mayda Velasco

The mass of the Higgs boson is measured in the $H\to\gamma\gamma$ decay channel, exploiting the high resolution of the invariant mass of photon pairs reconstructed from the decays of Higgs bosons produced in proton-proton collisions at a…

高能物理 - 实验 · 物理学 2023-12-18 ATLAS Collaboration

Different methods for treating the results of higher-order perturbative QCD calculations of the decay width of the Standard Model Higgs boson into bottom quarks are discusssed. Special attention is paid to the analysis of the $M_H$…

高能物理 - 唯象学 · 物理学 2009-01-26 A. L. Kataev , V. T. Kim

A very simple and transparent way for the mass definition of a new boson, probably Higgs (H), observed at LHC, decaying into 4 leptons, is presented. The obtained mass of H is 125.5+/-0.4 GeV with today statistics.

高能物理 - 实验 · 物理学 2015-12-08 V. Roinishvili

A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the $H \rightarrow \gamma\gamma$ and $H \rightarrow ZZ\rightarrow 4\ell$ decay channels. The results…

高能物理 - 实验 · 物理学 2015-05-20 ATLAS , CMS Collaborations

Results are presented from a search for the Higgs boson decay H $\to$ Z$\gamma$, where Z $\to$ $\ell^+\ell^-$ with $\ell$ = e or $\mu$. The search is performed using a sample of proton-proton (pp) collision data at a center-of-mass energy…

高能物理 - 实验 · 物理学 2023-06-05 CMS Collaboration

The ATLAS and CMS Collaborations reported that the observed number of Higgs boson decays into a $Z$ boson and a photon is $\mu = 2.2 \pm 0.7$ times higher than predicted by the Standard Model. Initially, this discrepancy was attributed to a…

高能物理 - 唯象学 · 物理学 2025-03-14 Aliaksei Kachanovich

The Higgs boson decay channel, $H\to\gamma\gamma$, is one of the most important channels for probing the properties of the Higgs boson. In the paper, we reanalyze its decay width by using the QCD corrections up to $\alpha_s^4$-order level.…

高能物理 - 唯象学 · 物理学 2019-07-25 Qing Yu , Xing-Gang Wu , Sheng-Quan Wang , Xu-Dong Huang , Jian-Ming Shen , Jun Zeng

A search for the Higgs boson in H->WW->ee and H->WW->mu+tau decays in ppbar collisions at a center-of-mass energy of sqrt(s)=1.96 TeV is presented. The data have been collected by the Run II DO detector. In order to maximize the sensitivity…

高能物理 - 实验 · 物理学 2008-06-06 Bjoern Penning

In this paper a simulation of measurements of the Higgs boson decay to electroweak bosons in $e^+e^-$ collisions at CLIC is presented. Higgs boson production and subsequent $H\rightarrow ZZ^\ast$ and $H\rightarrow WW^\ast$ decay processes…

Radiative corrections to the $h\rightarrow Z\gamma$ are evaluated in the one-loop approximation. The unitary gauge gauge is used. The analytic result is expressed in terms of the Passarino-Veltman functions. The calculations are applicable…

高能物理 - 唯象学 · 物理学 2018-11-06 L. T. Hue , A. B. Arbuzov , T. T. Hong , T. Phong Nguyen , D. T. Si , H. N. Long
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