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Higgs boson mass sum rules of supersymmetric models offer attractive targets for precision tests at future muon colliders. These sum rules involve the gauge boson masses as well as the masses of the Higgs boson states which can be precisely…

High Energy Physics - Phenomenology · Physics 2010-05-28 M. S. Berger

The FCC-ee offers powerful opportunities to determine the Higgs boson parameters, exploiting over $10^6$ ${\rm e^+e^- \to ZH}$ events and almost $10^5$ ${\rm WW \to H}$ events at centre-of-mass energies around 240 and 365 GeV. This essay…

High Energy Physics - Experiment · Physics 2021-12-07 Paolo Azzurri , Gregorio Bernardi , Sylvie Braibant , David d'Enterria , Jan Eysermans , Patrick Janot , Ang Li , Emmanuel Perez

We consider the possibility of detecting a heavy Higgs boson ($m_H>2m_Z$) in proposed $\gamma\gamma$ colliders through the semi-leptonic mode $\gamma\gamma \rightarrow H \rightarrow ZZ \rightarrow q\bar q \ell^+\ell^-$. We show that due to…

High Energy Physics - Phenomenology · Physics 2009-10-22 David Bowser-Chao , Kingman Cheung

Inclusive Standard Model Higgs boson pair production and subsequent decay to same-sign dileptons via weak gauge W bosons at the CERN Large Hadron Collider has the capability to determine the Higgs boson self-coupling, lambda. The large top…

High Energy Physics - Phenomenology · Physics 2014-11-17 Uli Baur , Tilman Plehn , David Rainwater

We investigate the potential for measuring the relative couplings of a low-mass Higgs boson at the Large Hadron Collider using WH, ZH, and ttbarH production, where the Higgs boson decays to tau-lepton pairs. With 100/fb of sqrt(s) = 14 TeV…

High Energy Physics - Phenomenology · Physics 2013-05-30 Christopher Boddy , Sinead Farrington , Christopher Hays

We discuss the implications of the excesses in LHC Higgs boson searches on the gauge mediated supersymmetric standard model, for the mass range 120-140\,GeV. We find that a relatively heavy lightest Higgs boson mass in this range can be…

High Energy Physics - Phenomenology · Physics 2011-08-18 Jason L. Evans , Masahiro Ibe , Tsutomu T. Yanagida

Techniques and strategies for discovering and measuring the properties of Higgs bosons via $s$-channel production at a $\mu^+\mu^-$ collider, and the associated requirements for the machine and detector, are discussed in detail. The unique…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , M. S. Berger , J. F. Gunion , T. Han

The latest measurements of the Higgs boson properties in both the $\mathrm{H}\rightarrow\gamma\gamma$ decay channel and the $\mathrm{H}\rightarrow{\rm Z}{\rm Z}\rightarrow4\ell$ ($\ell={\rm e},\mu$) decay channel using the proton-proton…

High Energy Physics - Experiment · Physics 2017-08-31 Junquan Tao

Feasibility of the precise measurement of the SM Higgs-boson production cross section gamma+gamma->h->b+bbar at the Photon Collider is studied in detail for M_h=120-160 GeV. All relevant experimental and theoretical issues, which could…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Niezurawski

We present updated predictions for the total cross section for Higgs boson production through gluon fusion at hadron colliders. In addition to renormalization-group improvement at next-to-next-to-next-to-leading logarithmic accuracy, we…

High Energy Physics - Phenomenology · Physics 2011-04-05 Valentin Ahrens , Thomas Becher , Matthias Neubert , Li Lin Yang

Results are presented from searches for the standard model Higgs boson in proton-proton collisions at sqrt(s) = 7 and 8 TeV in the Compact Muon Solenoid experiment at the LHC, using data samples corresponding to integrated luminosities of…

High Energy Physics - Experiment · Physics 2013-01-29 The CMS Collaboration

Inclusive Standard Model Higgs boson pair production at hadron colliders has the capability to determine the Higgs boson self-coupling, lambda. We present a detailed analysis of the gg\to HH\to (W^+W^-)(W^+W^-)\to…

High Energy Physics - Phenomenology · Physics 2014-11-17 U. Baur , T. Plehn , D. Rainwater

Precision measurements of $Z^0$ boson properties could enable a determination of the mass of the b quark at the scale of the $Z^0$ boson mass $m_b(m_Z)$. The dependence of Standard Model predictions on the b quark mass using the program…

High Energy Physics - Phenomenology · Physics 2022-03-25 S. Kluth

In this study, we explore the detectability of heavy Higgs bosons in the $pp \to b\bar{b}H/A \to b\bar{b}t\bar{t}$ channel at a 100 TeV hadron collider within the semi-constrained Next-to-Minimal Supersymmetric Standard Model (NMSSM). We…

High Energy Physics - Phenomenology · Physics 2024-07-26 Kun Wang , Pengfu Tian , Jingya Zhu

We discuss the experimental and theoretical uncertainties on precision electroweak observables and their relationship to the indirect constraints on the Higgs-boson mass, $\MH$, in the Standard Model (SM). The critical experimental…

Assuming an integrated luminosity of 500 fb$^{-1}$ and a center-of-mass energy of 350 GeV, we examine the prospects for measuring branching fractions of a Standard Model-like Higgs boson with a mass of 160 GeV at the future linear \ee…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Boos , V. Ilyin , A. Pukhov , M. Sachwitz , H. J. Schreiber

We consider the possibility of Higgs boson detection at LEP II under the resonance threshold ($\sqrt{s}<m_H+m_Z$) in the framework of complete tree level approach to the calculation of the $e^+ e^- \rightarrow \nu \bar \nu b \bar b$…

High Energy Physics - Phenomenology · Physics 2015-06-25 E. Boos , M. Dubinin , L. Dudko

The rate for Higgs (H) bosons production in association with either one (tH) or two ($\mathrm{t\bar{t}}$H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using…

High Energy Physics - Experiment · Physics 2021-05-04 CMS Collaboration

A measurement of WW production in pp collisions at sqrt(s) = 7 TeV and a search for the Higgs boson are reported. The WW candidates are selected in events with two leptons, either electrons or muons. The measurement is performed using LHC…

High Energy Physics - Experiment · Physics 2012-08-27 CMS Collaboration

A high luminosity Circular Electron Positron Collider (CEPC) as a Higgs Factory will be helpful to the precision measurement of the Higgs mass. The signal-background interference effect is carefully studied for the Higgs diphoton decay mode…

High Energy Physics - Phenomenology · Physics 2016-01-08 Guang-Zhi Xu , Gang Li , Yi-Jie Li , Kui-Yong Liu , Yu-Jie Zhang