D_s meson production at central rapidity in proton--proton collisions at sqrt(s) = 7 TeV - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physics Letters B Year : 2012

D_s meson production at central rapidity in proton--proton collisions at sqrt(s) = 7 TeV

B. Abelev
  • Function : Author
J. Faivre
  • Function : Author
C. Roy
Laurent Aphecetche
Guillaume Batigne
B. Erazmus
  • Function : Author
  • PersonId : 1178907
  • IdRef : 033726485
Magali Estienne
Marie Germain
Gines Martinez Garcia
Philippe Pillot
Alexandre Shabetai
Diego Stocco
B. Cheynis
Maxime Guilbaud

Abstract

The pt-differential inclusive production cross section of the prompt charm-strange meson D_s in the rapidity range |y|<0.5 was measured in proton--proton collisions at sqrt(s)=7 TeV at the LHC using the ALICE detector. The analysis was performed on a data sample of 2.98 10^8 events collected with a minimum-bias trigger. The corresponding integrated luminosity is L_int=4.8 nb^-1. Reconstructing the decay D_s -.> phi pi, with phi -> KK, and its charge conjugate, about 480 D_s mesons were counted, after selection cuts, in the transverse momentum range 2

Dates and versions

in2p3-00723482 , version 1 (10-08-2012)

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Cite

B. Abelev, N. Arbor, G. Conesa Balbastre, J. Faivre, C. Furget, et al.. D_s meson production at central rapidity in proton--proton collisions at sqrt(s) = 7 TeV. Physics Letters B, 2012, 718, pp.279-294. ⟨10.1016/j.physletb.2012.10.049⟩. ⟨in2p3-00723482⟩
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