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A search for a Higgs boson decay $H\to\gamma^*\gamma\to\ell\ell\gamma$ is presented. The analysis is performed using proton-proton collision data recorded by the CMS detector at the CERN LHC at a centre-of-mass energy of 8 TeV,…

High Energy Physics - Experiment · Physics 2016-01-06 Andrey Pozdnyakov

Two important properties of a Higgs boson are its mass and width. They may distinguish the Standard Model (SM) Higgs boson from Higgs bosons of extended models. We show results from a direct mass and width reconstruction for a Higgs boson…

High Energy Physics - Phenomenology · Physics 2009-11-07 V. Drollinger , A. Sopczak

We embed the Standard Model in the Randall-Sundrum model of 5 dimensional brane localized gravity. The SM gauge and chiral fermion fields are restricted on the 4D visible brane whereas the Higgs and the right-handed neutrino are assumed to…

High Energy Physics - Phenomenology · Physics 2009-10-31 Chia-Hung V. Chang , J. N. Ng

This paper describes a topological search for an invisibly decaying Higgs boson,H, produced via the Bjorken process (e+e- -> HZ). The analysis is based on data recorded using the OPAL detector at LEP at centre-of-mass energies from 183 to…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration

The program HDECAY determines the partial decay widths and branching ratios of the Higgs bosons within the Standard Model with three and four generations of fermions, including the case when the Higgs couplings are rescaled, a general…

High Energy Physics - Phenomenology · Physics 2019-03-27 Abdelhak Djouadi , Jan Kalinowski , Margarete Muehlleitner , Michael Spira

The most recent $W$-boson mass measurement by the CDF collaboration with a substantially reduced uncertainty indicates a significant deviation from the standard model prediction, as large as $7\sigma$ if taken literally. Then the…

High Energy Physics - Phenomenology · Physics 2022-08-16 Soojin Lee , Kingman Cheung , Jinheung Kim , Chih-Ting Lu , Jeonghyeon Song

We present in analytic form the O(alpha_s^5) correction to the H->gg partial width of the standard-model Higgs boson with intermediate mass M_H<2M_t. Its knowledge is useful because the O(alpha_s^4) correction is sizeable (around 20%). For…

High Energy Physics - Phenomenology · Physics 2016-09-06 P. A. Baikov , K. G. Chetyrkin

We present a search for the standard model Higgs boson produced in association with a W boson in sqrt(s) = 1.96 TeV p-pbar collision data collected with the CDF II detector at the Tevatron corresponding to an integrated luminosity of 9.45…

High Energy Physics - Experiment · Physics 2012-10-23 The CDF Collaboration

We present a search for the standard model Higgs boson produced in association with a Z boson in data collected with the CDF II detector at the Tevatron, corresponding to an integrated luminosity of 9.45/fb. In events consistent with the…

High Energy Physics - Experiment · Physics 2013-05-30 CDF Collaboration

A search is presented for a high-mass Higgs boson in the $H\rightarrow\ell\ell\ell\ell$, $H\rightarrow\ell\ell\nu\nu$, $H\rightarrow\ell\ell qq$, and $H\rightarrow\nu\nu qq$ decay modes using the ATLAS detector at the CERN Large Hadron…

High Energy Physics - Experiment · Physics 2016-03-08 ATLAS Collaboration

A search for a heavy Standard Model Higgs boson decaying via H->ZZ->llqq, where l=e or mu, is presented. The search uses a data set of pp collisions at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 4.7 fb^-1 collected in…

High Energy Physics - Experiment · Physics 2013-06-11 ATLAS Collaboration

The measurements of the properties of the Higgs boson are presented in the H$\rightarrow$ZZ$\rightarrow$4$\ell$ ($\ell$=e,$\mu$) decay channel using a data sample corresponding to an integrated luminosity of 35.9 fb$^{-1}$ of proton-proton…

High Energy Physics - Experiment · Physics 2017-10-11 Muhammad Bilal Kiani

The Higgs boson decay, H -> mu mubar gamma, is studied in the Standard Model at the tree and one-loop levels. It is shown that for Higgs boson masses above 110 GeV, the contribution to the radiative width from the one-loop level exceeds the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ali Abbasabadi , Wayne W. Repko

Depending on the Higgs-boson and top-quark masses, $M_H$ and $M_t$, the effective potential of the {\bf Standard Model} can develop a non-standard minimum for values of the field much larger than the weak scale. In those cases the standard…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Quirós

We study Higgs boson production and decay in a certain class of Little Higgs models with T-parity in which some T-parity partners of the Standard Model (SM) fermions gain their masses through Yukawa-type couplings. We find that the Higgs…

High Energy Physics - Phenomenology · Physics 2011-01-13 Chuan-Ren Chen , Kazuhiro Tobe , C. -P. Yuan

We give an overview of Standard Model Higgs boson studies performed at the CDF and Dzero experiments at the Tevatron proton-antiproton collider. Combining the results of many individual analyses, most of which use the full data set…

High Energy Physics - Experiment · Physics 2014-04-14 Kyle J. Knoepfel

We calculate the production and decay rates of the Higgs boson at the LHC in the context of general 5 dimensional (5D) warped scenarios with a spacetime background modified from the usual $AdS_5$, with SM fields propagating in the bulk. We…

High Energy Physics - Phenomenology · Physics 2016-03-23 Mariana Frank , Nima Pourtolami , Manuel Toharia

The precision and predictive power of perturbative QCD (pQCD) prediction depends on both a precise, convergent fixed-order series and a reliable way of estimating the contributions of unknown higher-order (UHO) terms. It has been shown that…

High Energy Physics - Phenomenology · Physics 2024-02-29 Yu-Feng Luo , Jiang Yan , Zhi-Fei Wu , Xing-Gang Wu

We examine whether the parameters in the Higgs sector of the minimal supersymmetric standard model can be determined by detailed study of production cross section and decay branching ratios of the Higgs particle. Assuming that the lightest…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Kamoshita , Y. Okada , M. Tanaka

A search for the dimuon decay of the Higgs boson was performed using data corresponding to an integrated luminosity of 36.1 fb$^{-1}$ collected with the ATLAS detector in $pp$ collisions at $\sqrt{s}=13$ TeV at the Large Hadron Collider. No…

High Energy Physics - Experiment · Physics 2017-08-16 ATLAS Collaboration
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