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  4. Measurement of Upsilon production in collisions at root s=2.76 TeV
 
research article

Measurement of Upsilon production in collisions at root s=2.76 TeV

Aaij, R.
•
Adeva, B.
•
Adinolfi, M.
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2014
The European Physical Journal C

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.

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Type
research article
DOI
10.1140/epjc/s10052-014-2835-1
Web of Science ID

WOS:000335380800001

Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
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Corporate authors
LHCb Collaboration
Date Issued

2014

Publisher

Springer

Published in
The European Physical Journal C
Volume

74

Article Number

2835

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
June 16, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/104332
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