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Related papers: A Study of e+e- -> H0A0 -> bbbb at 3 TeV at CLIC

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The latest results of Higgs boson searches beyond the Standard Model from the ATLAS and CMS experiments are reviewed. This includes searches for additional neutral, charged, and double charged Higgs-like bosons, searches for dark matter…

High Energy Physics - Experiment · Physics 2024-09-24 André Sopczak

A search for neutral Higgs bosons has been performed with the OPAL detector at LEP, using approximately 170 pb-1 of e+e- collision data collected at sqrt(s)~189GeV. Searches have been performed for the Standard Model (SM) process e+e- to…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendo

Methods for extracting Higgs boson signals at a 1 TeV center-of-mass energy e+e- linear collider are described. In addition, estimates are given for the accuracy with which branching fractions can be measured for Higgs boson decays to bb,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Timothy L. Barklow

Supersymmetry and more specifically supergravity grand unification allow one to extrapolate physics from the electroweak scale up to the grand unification scale consistent with electroweak data. Here we give a brief overview of their…

High Energy Physics - Phenomenology · Physics 2017-12-06 Pran Nath , Raza M. Syed

On-going Higgs searches in the light mass window are of vital importance for testing the Higgs mechanism and probing new physics beyond the standard model (SM). The latest ATLAS and CMS searches for the SM Higgs boson at the LHC (7TeV)…

High Energy Physics - Phenomenology · Physics 2012-04-17 Ning Chen , Hong-Jian He

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

We perform a comprehensive statistical analysis of the standard model (SM) with three and four generations using the latest Higgs search results from LHC and Tevatron, the electroweak precision observables (EWPOs) measured at LEP and SLD…

High Energy Physics - Phenomenology · Physics 2013-05-30 Otto Eberhardt , Geoffrey Herbert , Heiko Lacker , Alexander Lenz , Andreas Menzel , Ulrich Nierste , Martin Wiebusch

The lack of evidence for low energy supersymmetry at the LHC implies a supersymmetry scale in excess a TeV. While this is consistent (and even helpful) with a Higgs boson mass at $\approx$ 125 GeV, simple supersymmetric models with scalar…

High Energy Physics - Phenomenology · Physics 2016-04-26 Keith A. Olive

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

This note summarizes many detailed physics studies done by the ATLAS and CMS Collaborations for the LHC, concentrating on processes involving the production of high mass states. These studies show that the LHC should be able to elucidate…

High Energy Physics - Phenomenology · Physics 2012-08-27 The ATLAS Collaboration , the CMS Collaboration , J. G. Branson , D. Denegri , I. Hinchliffe , F. Gianotti , F. E. Paige , P. Sphicas

We have examined how a Standard Model or Supersymmetric Higgs boson h might be detected at possible hadron colliders. The channels W(to ell nu)h(to b b~), Z(to ell ell~)h(to b b~) and W/Z(to jets)h(to tau+ tau-) are most useful. The results…

High Energy Physics - Phenomenology · Physics 2016-09-01 Stephen Mrenna , G. L. Kane

Recently the ATLAS and CMS experiments at the LHC have found a Higgs like boson $h$ with a mass around 125 GeV from several decay modes. The decay mode $h \to \gamma\gamma$ is one of the most important modes in studying whether $h$ is…

High Energy Physics - Phenomenology · Physics 2015-06-15 Xiao-Gang He , Siao-Fong Li , Hsiu-Hsien Lin

Searches for the Standard Model Higgs boson by the four LEP experiments found excess events in two mass ranges: a 2.3 sigma excess around 98 GeV, and an 1.7 sigma excess around 115 GeV. The latter has been discussed widely in the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Manuel Drees

LHC-7 has narrowed down the mass range of the light Higgs boson. This result is consistent with the supergravity unification framework, and the current Higgs boson mass window implies a rather significant loop correction to the tree value…

High Energy Physics - Phenomenology · Physics 2012-05-23 Sujeet Akula , Baris Altunkaynak , Daniel Feldman , Pran Nath , Gregory Peim

On July 4, 2012, the discovery of a new boson, with mass around 125 GeV/c2 and with properties compatible with those of a standard-model Higgs boson, was announced at CERN. In this context, a high-luminosity electron-positron collider ring,…

The effect of beam related systematics, namely uncertainty in the beam energy and differential luminosity spectrum measurements and beam energy spread on the precision of the Higgs boson mass measurement at a future linear e+e- collider is…

High Energy Physics - Experiment · Physics 2007-05-23 A. Raspereza

In the CP-violating Minimal Supersymmetric Standard Model (MSSM), for certain values of the CP-violating phases associated to the universal trilinear couplings $(A_t, A_b)$ and the gluino mass $(M_{\tilde g})$, e.g., $\Phi_{\rm{CP}} =…

High Energy Physics - Phenomenology · Physics 2009-01-07 Dilip Kumar Ghosh , Stefano Moretti

We analyze the phenomenological consequences of assuming that the 125 GeV boson measured at the LHC coincides with one of the two CP-even Higgs bosons of an effective Minimal Supersymmetric extension of the Standard Model at the electroweak…

High Energy Physics - Phenomenology · Physics 2013-08-09 S. Scopel , N. Fornengo , A. Bottino

We summarize the possible processes which may be used to search for a Higgs boson, of mass in the range 114-130 GeV, at the LHC. We discuss, in detail, two processes with rapidity gaps: exclusive Higgs production with tagged outgoing…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. De Roeck , V. A. Khoze , A. D. Martin , R. Orava , M. G. Ryskin

Recent LHC results suggest a standard model (SM)-like Higgs boson in the vicinity of 125 GeV with no clear indications yet of physics beyond the SM. At the same time, the SM is incomplete, since additional dynamics are required to…

High Energy Physics - Phenomenology · Physics 2015-06-04 Clifford Cheung , Michele Papucci , Kathryn M. Zurek