Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width
Yazarlar (1)
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of High Energy Physics (Q1)
Dergi ISSN 1029-8479 Dergi Bilgileri (2016)
Makale Dili İngilizce Basım Tarihi 09-2016
Cilt / Sayı / Sayfa 2016 / 9 / 1–44 DOI 10.1007/JHEP09(2016)051
Makale Linki https://hdl.handle.net/11424/241566
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
A search is presented for the Higgs boson off-shell production in gluon fusion and vector boson fusion processes with the Higgs boson decaying into a W+ W− pair and the W bosons decaying leptonically. The data observed in this analysis are used to constrain the Higgs boson total decay width. The analysis is based on the data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 4.9 fb− 1 at a centre-of-mass energy of 7 TeV and 19.4 fb− 1 at 8 TeV, respectively. An observed (expected) upper limit on the off-shell Higgs boson event yield normalised to the standard model prediction of 2.4 (6.2) is obtained at the 95% CL for the gluon fusion process and of 19.3 (34.4) for the vector boson fusion process. Observed and expected limits on the total width of 26 and 66 MeV are found, respectively, at the 95% confidence level (CL). These limits are combined with the previous result in …
Anahtar Kelimeler
Hadron-Hadron scattering (experiments) | Higgs physics