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We explore the potential of a future e^+ e^- collider in the 0.5 TeV center-of-mass energy range to detect intermediate or heavy Higgs bosons in the Standard Model. We first briefly assess the production cross sections and update the decay…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , Kingman Cheung , B. A. Kniehl , R. J. N. Phillips

We discuss two novel possibilities in Higgs physics. The first is that, by adding a real Higgs triplet to the Standard Model, it is possible for the lightest Higgs boson to be as heavy as 500 GeV without any fine tuning. The second,…

High Energy Physics - Phenomenology · Physics 2007-05-23 J R Forshaw

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have collected 2465 pb-1 of e+e- collision data at energies between 189 and 209 GeV, of which 542 pb-1 were collected above 206 GeV. Searches for the Standard Model Higgs boson have…

High Energy Physics - Experiment · Physics 2012-08-27 ALEPH Collaboration , DELPHI Collaboration , L3 Collaboration , OPAL Collaboration , the LEP Higgs Working Group

We discuss the observability of the lightest neutral Higgs boson in the constrained MSSM (CMSSM), with universal soft supersymmetry-breaking parameters, at hadron colliders such as the Tevatron and the LHC. We take account of the…

High Energy Physics - Phenomenology · Physics 2009-09-11 J. Ellis , S. Heinemeyer , K. A. Olive , G. Weiglein

While the recent discovery of a Higgs-like boson at the LHC is an extremely important and encouraging step towards the discovery of the {\it complete} standard model(SM), the current information on this state does not rule out possibility…

High Energy Physics - Phenomenology · Physics 2015-02-13 Diptimoy Ghosh , Rohini Godbole , Monoranjan Guchait , Kirtimaan Mohan , Dipan Sengupta

A detailed description is reported of the analysis used by the CMS Collaboration in the search for the standard model Higgs boson in pp collisions at the LHC, which led to the observation of a new boson. The data sample corresponds to…

High Energy Physics - Experiment · Physics 2013-07-05 CMS Collaboration

Direct and indirect searches of the Higgs boson suggest that 113 GeV $\lesssim m_H \lesssim$ 170 GeV is likely. With the LEP era over and the Tevatron Run II search via $p\bar p \to WH+X$ arduous, we revisit a case where $WH$ or $ZH +$ jets…

High Energy Physics - Phenomenology · Physics 2011-03-23 Abdesslam Arhrib , Wei-Shu Hou

We investigate the production of a heavy charged Higgs boson at hadron colliders within the context of the MSSM. A detailed study is performed for all important production modes and basic background processes for the t\bar{t}b\bar{b}…

High Energy Physics - Phenomenology · Physics 2009-11-07 Alexander Belyaev , David Garcia , Jaume Guasch , Joan Sola

We combine results from CDF and DO searches for a standard model Higgs boson in ppbar collisions at the Fermilab Tevatron, at sqrt{s}=1.96 TeV. With 3.0 fb-1 of data analyzed at CDF, and at DO, the 95% C.L. upper limits on Higgs boson…

High Energy Physics - Experiment · Physics 2008-08-06 Tevatron New Phenomena , Higgs working group , CDF Collaboration , D0 Collaboration

The CDF and D{\O} experiments at the Tevatron are currently the only capable of searching for the Standard Model Higgs boson. This article describes their most sensitive searches in the expected Higgs mass range, focusing on advanced…

High Energy Physics - Experiment · Physics 2007-05-25 Ben Kilminster

A search for the Standard Model Higgs boson has been performed in the H \rightarrow WW \rightarrow l{\nu}jj channel in 1.04 fb-1 of pp collisions at \surds = 7 TeV collected with the ATLAS detector at the Large Hadron Collider. No…

High Energy Physics - Experiment · Physics 2019-08-13 Mark S. Neubauer

A search is reported for Higgs boson decay to $\mu^{+}\mu^{-}$ using data with an integrated luminosity of $24.8~\rm{fb}^{-1}$ collected with the ATLAS detector in $pp$ collisions at $\sqrt{s}$=7 and 8 TeV at the CERN Large Hadron Collider.…

High Energy Physics - Experiment · Physics 2014-09-29 ATLAS Collaboration

We study the phenomenology of Higgs bosons close to 126 GeV within the scale invariant unconstrained next-to-minimal supersymmetric Standard Model (NMSSM), focusing on the regions of parameter space favoured by low fine-tuning…

High Energy Physics - Phenomenology · Physics 2015-06-12 Stephen F. King , Margarete Muhlleitner , Roman Nevzorov , Kathrin Walz

The recent results on various Beyond the Standard Model (BSM) Higgs boson searches performed by the DZERO experiment at the Tevatron are presented here. In particular, the Higgs bosons in supersymmetric models and fermiophobic scenario have…

High Energy Physics - Experiment · Physics 2010-04-22 Prolay Kumar Mal

A Higgs boson lighter than 2 m_W that decays mostly into invisible channels (e.g., dark matter particles) is theoretically well-motivated. We study the prospects for discovery of such an invisible Higgs, h_inv, at the LHC and the Tevatron…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hooman Davoudiasl , Tao Han , Heather E. Logan

This paper shortly reports on the results of Higgs boson searches performed at LEP and Tevatron. No signal is found and limits on the mass and couplings of the Higgs boson are derived. Interpreting the data in the framework of the Standard…

High Energy Physics - Experiment · Physics 2007-05-23 Alexei Raspereza

We combine results from CDF and D0 on direct searches for a standard model (SM) Higgs boson (H) in ppbar collisions at the Fermilab Tevatron at sqrt(s)=1.96 TeV. Compared to the previous Tevatron Higgs search combination more data have been…

High Energy Physics - Experiment · Physics 2012-08-27 The CDF Collaboration , the D0 Collaboration , the Tevatron New Physics , Higgs Working Group

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

We present a detailed study of the central exclusive production of the Standard Model Higgs Boson in the WW decay channel at the LHC. We include estimates of the experimental acceptance, including that of the proposed proton tagging…

High Energy Physics - Phenomenology · Physics 2009-01-07 B. E. Cox , A. De Roeck , V. A. Khoze , T. Pierzchala , M. G. Ryskin , I. Nasteva , W. J. Stirling , M. Tasevsky

The combined results of the search for the Standard Model Higgs boson from the four LEP experiments are given. These results are based on the full data sample collected by ALEPH, DELPHI, L3 and OPAL at centre-of-mass energies up to 209GeV,…

High Energy Physics - Experiment · Physics 2007-05-23 F. Cerutti