Inclusive b-hadron production cross section with muons in pp collisions at √s = 7 TeV
Journal of High Energy Physics, cilt.2011, sa.3, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2011 Sayı: 3
- Basım Tarihi: 2011
- Doi Numarası: 10.1007/jhep03(2011)090
- Dergi Adı: Journal of High Energy Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Anahtar Kelimeler: Hadron-Hadron Scattering, HEAVY-QUARK PRODUCTION, P(P)OVER-BAR COLLISIONS, FACTORIZATION
- İstanbul Üniversitesi Adresli: Evet
Özet
A measurement of the b-hadron production cross section in proton-proton collisions at √s = 7TeV is presented. The dataset, corresponding to 85 nb-1, was recorded with the CMS experiment at the LHC using a low-threshold single-muon trigger. Events are selected by the presence of a muon with transverse momentum pμT > 6GeV with respect to the beam direction and pseudorapidity |ζμ| < 2.1. The transverse momentum of the muon with respect to the closest jet discriminates events containing b hadrons from background. The inclusive b-hadron production cross section is presented as a function of muon transverse momentum and pseudorapidity. The measured total cross section in the kinematic acceptance is σ(pp → b + X → μ + X′) = 1.32 ± 0.01(stat) ± 0.30(syst) ± 0.15(lumi)μb.