Abstract
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 besigma (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.
Original language | English |
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Article number | 2835 |
Number of pages | 11 |
Journal | European Physical Journal C |
Volume | 74 |
Issue number | 4 |
DOIs | |
Publication status | Published - 29 Apr 2014 |
Externally published | Yes |
Keywords
- PP COLLISIONS
- J-PSI
- HADRONIC PRODUCTION
- DECAY
- DETECTOR
- TOOL