Event activity dependence of Y(nS) production in sqrt(s[NN])=5.02 TeV pPb and sqrt(s)=2.76 TeV pp collisions - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of High Energy Physics Year : 2014

Event activity dependence of Y(nS) production in sqrt(s[NN])=5.02 TeV pPb and sqrt(s)=2.76 TeV pp collisions

S. Chatrchyan
  • Function : Author
P. Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
J.-L. Agram
C. Collard
E. Conte
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
P. Verdier

Abstract

The production of Y(1S), Y(2S), and Y(3S) is investigated in pPb and pp collisions at centre-of-mass energies per nucleon pair of 5.02 TeV and 2.76 TeV, respectively. The datasets correspond to integrated luminosities of about 31 inverse nanobarns (pPb) and 5.4 inverse picobarns (pp), collected in 2013 by the CMS experiment at the LHC. Upsilons that decay into muons are reconstructed within the rapidity interval abs(y[CM])<1.93 in the nucleon-nucleon centre-of-mass frame. Their production is studied as a function of two measures of event activity, namely the charged-particle multiplicity measured in the pseudorapidity interval abs(eta)<2.4, and the sum of transverse energy deposited at forward pseudorapidity, 4.0

Dates and versions

in2p3-00925493 , version 1 (08-01-2014)

Identifiers

Cite

S. Chatrchyan, S. Baffioni, F. Beaudette, P. Busson, C. Charlot, et al.. Event activity dependence of Y(nS) production in sqrt(s[NN])=5.02 TeV pPb and sqrt(s)=2.76 TeV pp collisions. Journal of High Energy Physics, 2014, 4, pp.103. ⟨10.1007/JHEP04(2014)103⟩. ⟨in2p3-00925493⟩
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