LEP Higgs boson searches beyond the standard model and minimum supersymmetric standard model
نویسندگان
چکیده
منابع مشابه
Standard Model Higgs Searches
The status and perspectives of Standard Model Higgs searches are discussed.
متن کاملSearch for the Standard Model Higgs Boson at LEP
One of the missions of the LEP program was the search for the Standard Model Higgs Boson. The skillful operation of the machine in the year 2000, the final year of operation, has allowed the four collaborations ALEPH, DELPHI, L3 and OPAL to collect 536 pb of data at center-of-mass energies of 206 GeV or higher. This data is used to probe the existence of the Higgs boson up to a mass of around 1...
متن کاملSearch for the Standard Model Higgs Boson at LEP
Preliminary results from the four LEP experiments using data collected at 189 GeV have shown no evidence for the Standard Model Higgs boson. The preliminary 95% confidence level lower limits on the SM Higgs boson mass from ALEPH, DELPHI, OPAL, and L3 are 90.4 GeV/c, 94.1 GeV/c, 95.5 GeV/c, and 95.2 GeV/c, respectively. When LEP finishes in the year 2000, each experiment expects to collect 200 p...
متن کاملSearches for the Higgs boson in Minimal Supersymmetric CP-conserving and CP-violating Standard Model scenarios at LEP
It is important to study extended models containing more than one physical Higgs boson in the spectrum. In particular, Two Higgs Doublet Models (2HDMs) 1 are attractive extensions of the SM, predicting new phenomena with the fewest new parameters. The Higgs sector in the Minimal Supersymmetric extension of the SM (MSSM) is a 2HDM itself. The neutral Higgs searches performed at LEP are showing n...
متن کاملSearches for the Standard Model Higgs Boson at the Tevatron
The CDF and DØ experiments at the Tevatron have searched for the Standard Model Higgs boson in data collected between 2001 and 2004. Upper limits have been placed on the production cross section times branching ratio to b ¯ b pairs or W + W − pairs as a function of the Higgs boson mass. Projections indicate that the Tevatron experiments have a chance of discovering a MH = 115 GeV Higgs with the...
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ژورنال
عنوان ژورنال: Pramana
سال: 2004
ISSN: 0304-4289,0973-7111
DOI: 10.1007/bf02705315