TY - JOUR AU - LHCb Collaboration (Aaij, R. et al AU - Martinez-Vidal, F. AU - Oyanguren, A. AU - Ruiz Valls, P. PY - 2014 DA - 2014// TI - Measurement of Upsilon production in collisions at root s=2.76 TeV T2 - Eur. Phys. J. C JO - European Physical Journal C SP - 2835 - 11pp VL - 74 IS - 4 PB - Springer AB - The production of , and mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of collected in proton-proton collisions at a centre-of-mass energy of TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the transverse momentum and rapidity, over the ranges GeV/ and . The total cross-sections in this kinematic region, assuming unpolarised production, are measured to be sigma (pp -> Upsilon(1S)X) x B(Upsilon(1S) -> mu(+)mu(-)) = 1.111 +/- 0.043 +/- 0.044 nb, sigma (pp -> Upsilon(2S)X) x B(Upsilon(2S) -> mu(+)mu(-)) = 0.264 +/- 0.023 +/- 0.011 nb, sigma (pp -> Upsilon(3S)X) x B(Upsilon(3S) -> mu(+)mu(-))s = 0.159 +/- 0.020 +/- 0.007 nb, where the first uncertainty is statistical and the second systematic. SN - 1434-6044 UR - http://arxiv.org/abs/arXiv:1402.2539 UR - https://doi.org/10.1140/epjc/s10052-014-2835-1 DO - 10.1140/epjc/s10052-014-2835-1 LA - English N1 - WOS:000335380800001 ID - LHCbCollaborationAaij_etal2014 ER -