Production of Bc+ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of 2.0 fb^−1 recorded by the LHCb experiment. The ratio of production cross sections times branching fractions between the Bc+ → J/ψ π+ and B+ → J/ψ K+ decays is measured as a function of transverse momentum and rapidity in the regions 0 < p_T < 20 GeV/c and 2.0 < y < 4.5. The ratio in this kinematic range is measured to be (0.683 ± 0.018 ± 0.009)%, where the first uncertainty is statistical and the second systematic.
R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, et al. (2015). Measurement of Bc+ Production in Proton-Proton Collisions at √s = 8 TeV. PHYSICAL REVIEW LETTERS, 114(13), 1-9 [10.1103/PhysRevLett.114.132001].
Measurement of Bc+ Production in Proton-Proton Collisions at √s = 8 TeV
L. Capriotti;CARBONE, ANGELO;GALLI, DOMENICO;MOGGI, NICCOLO';MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2015
Abstract
Production of Bc+ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of 2.0 fb^−1 recorded by the LHCb experiment. The ratio of production cross sections times branching fractions between the Bc+ → J/ψ π+ and B+ → J/ψ K+ decays is measured as a function of transverse momentum and rapidity in the regions 0 < p_T < 20 GeV/c and 2.0 < y < 4.5. The ratio in this kinematic range is measured to be (0.683 ± 0.018 ± 0.009)%, where the first uncertainty is statistical and the second systematic.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.