Search for the standard model Higgs boson decaying to W W in the fullyleptonic final state in pp collisions at root s 7 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q4)
Dergi ISSN 0370-2693 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 01-2012
Cilt / Sayı / Sayfa 710 / 1 / 91–113 DOI 10.1016/j.physletb.2012.02.076
UAK Araştırma Alanları
Yüksek Enerji ve Parçacık Fiziği
Özet
One of the open questions in the standard model (SM) of particle physics [1–3] is the origin of the masses of fundamental particles. Within the SM, vector boson masses arise by the spontaneous breaking of electroweak symmetry by the Higgs field [4–9]. The existence of the associated field quantum, the Higgs boson, has yet to be established experimentally. The discovery or the exclusion of the SM Higgs boson is one of the central goals of the CERN Large Hadron Collider (LHC) physics program. Direct searches at the CERN e+e− LEP collider set a limit on the Higgs boson mass mH> 114. 4 GeV at 95% confidence level (CL)[10]. Precision electroweak data constrain the mass of the SM Higgs boson to be less than 158 GeV at 95% CL [11, 12]. The SM Higgs boson is excluded at 95% CL by the Tevatron collider experiments in the mass range 162–166 GeV [13], and by the ATLAS experiment in the mass ranges 145–206, 214–224, 340–450 GeV [14–16]. The H→ W+W−→ 2l2ν final state, where l is a charged lepton and ν a neutrino, was first proposed as a discovery channel at the LHC in [17]. A previous search for the Higgs boson at the LHC in this final state was published by the Compact Muon Solenoid (CMS) collaboration with 36 pb− 1 of integrated luminosity [18]. This search is performed over the mass range 110–600 GeV, and the data sample corresponds to 4. 6±0. 2 fb− 1 of integrated luminosity collected in 2011 at a center-of-mass energy
Anahtar Kelimeler
CMS | Higgs | Physics