Measurement of the ratio of the production cross sections times branching fractions of Bc±→ J/ψπ± and B± → J/ψK± and (Formula presented.) in pp collisions at (Formula presented.) TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Journal of High Energy Physics
Dergi ISSN 1029-8479 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 01-2015
Cilt / Sayı / Sayfa 2015 / 1 / – DOI 10.1007/JHEP01(2015)063
Makale Linki https://hdl.handle.net/11424/245986
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The ratio of the production cross sections times branching fractions\(\left (\sigma\left ({\mathrm {B}} _ {\mathrm {c}}^{\pm}\right)\mathrm {\mathcal {B}}\left ({\mathrm {B}} _ {\mathrm {c}}^{\pm}\to\mathrm {J}/\psi {\pi}^{\pm}\right)\right)/\left (\sigma\left ({\mathrm {B}}^{\pm}\right)\mathrm {\mathcal {B}}\left ({\mathrm {B}}^{\pm}\to\mathrm {J}/\psi {K}^{\pm}\right)\right)\) is studied in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires B±c and B±mesons with transverse momentum p T> 15 GeV and rapidity| y|< 1.6. The data sample corresponds to an integrated luminosity of 5.1 fb− 1. The ratio is determined to be\(\left [0.48\pm 0.05\left (\mathrm {stat}\right)\pm 0.03\left (\mathrm {syst}\right)\pm 0.05\\left ({\tau} _ {{\mathrm {B}} _ {\mathrm {c}}}\right)\right]\%\). The B±c→ J/ψπ±π±π∓ decay is also observed in the same data sample. Using a model …
Anahtar Kelimeler
B physics | Branching fraction | Hadron-Hadron Scattering