The production of Υ(1S), Υ(2S) and Υ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb-1 collected in proton-proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the Υ transverse momentum and rapidity, over the ranges pT < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, are measured to be (Formula presented.) where the first uncertainty is statistical and the second systematic. © 2014 CERN for the benefit of the LHCb collaboration.
Measurement of Υ production in pp collisions at √s = 2.76 TeV / Sarti, Alessio; Sciubba, Adalberto. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 74:(2014), pp. 1-11. [10.1140/epjc/s10052-014-2835-1]
Measurement of Υ production in pp collisions at √s = 2.76 TeV
SARTI, ALESSIO;SCIUBBA, Adalberto
2014
Abstract
The production of Υ(1S), Υ(2S) and Υ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3pb-1 collected in proton-proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the Υ transverse momentum and rapidity, over the ranges pT < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, are measured to be (Formula presented.) where the first uncertainty is statistical and the second systematic. © 2014 CERN for the benefit of the LHCb collaboration.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
