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The final state obtained when a Higgs boson decays to a photon and a Z boson has been mostly overlooked in current searches for a light Higgs boson. However, when the Z boson decays leptonically, all final state particles in this channel…

High Energy Physics - Phenomenology · Physics 2015-03-19 James S. Gainer , Wai-Yee Keung , Ian Low , Pedro Schwaller

The expected precision at the FCC-ee on the product $\sigma\times\mathcal{B}(H\rightarrow b\bar{b}, c\bar{c},s\bar{s},gg)$ of Higgs boson production cross sections times branching ratios of hadronic decays is presented. This study provides…

High Energy Physics - Experiment · Physics 2026-04-24 Andrea Del Vecchio , Jan Eysermans , Loukas Gouskos , George Iakovidis , Alexis Maloizel , Giovanni Marchiori , Michele Selvaggi

This study investigates the precision measurement of the CKM matrix element $|V_{cb}|$ through semileptonic $WW$ events at future Higgs factories, $i.e.$, FCC-ee, ILC, C$^3$, and CEPC. We use full detector simulation to generate the $WW \to…

High Energy Physics - Phenomenology · Physics 2024-10-29 Hao Liang , Lingfeng Li , Yongfeng Zhu , Xiaoyan Shen , Manqi Ruan

The potential of measurement of the relative statistical uncertainty of the ${{\sigma}(HZ)\times BR(H \rightarrow WW^{*})}$ decay, at the International Linear Collider (ILC) has been presented. The study is performed at the lowest energy…

High Energy Physics - Experiment · Physics 2019-02-22 Mila Pandurović

The investigation of the properties of a Higgs boson, especially a test of the predicted linear dependence of the branching ratios on the mass of the final state, is currently one of the most compelling arguments for building a linear…

High Energy Physics - Experiment · Physics 2012-02-28 Christian Grefe , Tomas Lastovicka , Jan Strube , Frederic Teubert , Blai Pie Valls

The branching fraction measurement of the SM-like Higgs boson decay into two muons at 1.4 TeV CLIC will be described in this paper contributed to the LCWS13. The study is performed in the fully simulated ILD detector concept for CLIC,…

High Energy Physics - Phenomenology · Physics 2014-03-27 I. Bozovic-Jelisavcic , S. Lukic , G. Milutinovic-Dumbelovic , M. Pandurovic

The signal discovered in the Higgs searches at the LHC can be interpreted as the Higgs boson of the Standard Model as well as the light CP-even Higgs boson of the Minimal Supersymmetric Standard Model (MSSM). In this context the measured…

High Energy Physics - Phenomenology · Physics 2014-04-02 T. Hahn , S. Heinemeyer , W. Hollik , H. Rzehak , G. Weiglein

The loop induced coupling of an intermediate mass Higgs boson to two photons is a sensitive and unique measure for precision tests of physics beyond the Standard Model. In this work we summarize recent results on the expected precision of…

High Energy Physics - Phenomenology · Physics 2009-10-31 Michael Melles

The latest results on the measurement of the properties of the new boson with mass around 125 GeV are reported. The analysis uses pp collision data recorded by the CMS detector at the LHC, corresponding to integrated luminosities of 5.1…

High Energy Physics - Experiment · Physics 2016-04-20 Linda Finco

For a Higgs boson below the $W^\pm$ threshold, the $\gamma \gamma$ collider option of a future linear $e^+ e^-$ machine is compelling. In this case one can measure the ``gold-plated'' loop induced $\Gamma (H \longrightarrow \gamma \gamma)$…

High Energy Physics - Phenomenology · Physics 2009-10-31 Michael Melles

The dominant decay mode of standard model Higgs at 126 GeV $b\bar{b}$ suffers from severe SM background at the LHC even in associated productions $Wh_{\rm SM}$ or $Z h_{\rm SM}$. The precision measurement of BR($\phi\to b\bar{b})$ requires…

High Energy Physics - Phenomenology · Physics 2013-01-01 Jiwei Ke , Hui Luo , Ming-xing Luo , Tian-yang Shen , Kai Wang , Liucheng Wang , Guohuai Zhu

A concise review of precision measurements in the Higgs sector of the Standard Model (SM) of particle physics is given using ATLAS and CMS data. The results are based on LHC Run-2 data, taken between 2015 and 2018. Impressive progress has…

High Energy Physics - Experiment · Physics 2020-01-22 Andre Sopczak

This document is meant to provide semi-quantitative arguments to evaluate the luminosity needed at ILC to achieve a precise measurement of the Higgs mass, width and invisible decays. It is shown that for mH=120 GeV, one can save an order of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Francois Richard , Philip Bambade

The precision measurements of the Higgs properties is crucial for a better understanding of electroweak symmetry breaking. It can be first achieved at the ILC\pcite{Behnke2013} at $\sqrt{s}=250\rm ~GeV$ via the Higgs-strahlung production…

High Energy Physics - Phenomenology · Physics 2014-04-14 Yacine Haddad

In this paper we investigate the prospects for measuring the branching fraction of the Standard Model Higgs boson decay into a pair of $Z$ bosons at the future Compact Linear Collider (CLIC) at 350 GeV and 3 TeV centre-of-mass energies.…

The search for MSSM Higgs bosons will be an important goal at the LHC. In order to analyze the search reach of the CMS experiment for the heavy neutral MSSM Higgs bosons, we combine the latest results for the CMS experimental sensitivities…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Heinemeyer , A. Nikitenko , G. Weiglein

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…

High Energy Physics - Phenomenology · Physics 2014-11-21 Philip Bechtle , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein

We present results on the determination of the observable ratio R=BR(H^+ -> \tau \nu)/BR(H^+ -> t b-bar) of charged Higgs boson decay rates as a discriminant quantity between Supersymmetric and non-Supersymmetric models. Simulation of…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. A. Assamagan , J. Guasch , S. Moretti , S. Penaranda

We study the feasibility of a precise measurement of the mass of a 120 GeV MSM Higgs boson through direct reconstruction of ZH->qqH events that would be achieved in a future e+e- linear collider operating at a center-of-mass energy of 500…

High Energy Physics - Experiment · Physics 2007-05-23 Aurelio Juste

The high-precision measurement of Higgs boson properties is one of the primary goals of the Circular Electron Positron Collider (CEPC). The measurements of $H\to b\bar{b}/c\bar{c}/gg$ decay branching fraction in the CEPC experiment is…

High Energy Physics - Experiment · Physics 2019-12-02 Yu Bai , Chunhui Chen , Yuquan Fang , Gang Li , Manqi Ruan , Jingyuan Shi , Bo Wang , Panyu Kong , Boyang Lan , Zhanfeng Liu