Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) cross sections in pp collisions at root s=7 TeV
PHYSICS LETTERS B, vol.727, pp.101-125, 2013 (SCI-Expanded)
- Publication Type: Article / Article
- Volume: 727
- Publication Date: 2013
- Doi Number: 10.1016/j.physletb.2013.10.033
- Journal Name: PHYSICS LETTERS B
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.101-125
- Keywords: CMS, Physics, Quarkonia, Upsilon, Dimuons, QED RADIATIVE-CORRECTIONS, UNIVERSAL MONTE-CARLO, PHOTOS
- Middle East Technical University Affiliated: Yes
Abstract
The Upsilon(1S), Upsilon(2S), and Upsilon(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8 +/- 1.4 pb(-1) of proton-proton collisions at root s = 7 TeV, collected with the CMS detector at the LHC. The Upsilon resonances are identified through their decays to dimuons. Integrated over the Upsilon transverse momentum range p(T)(Upsilon) < 50 GeV/c and rapidity range vertical bar y(Upsilon)vertical bar < 2.4, and assuming unpolarized Upsilon production, the products of the Upsilon production cross sections and dimuon branching fractions are