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

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
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Article dans une revue
Physics Letters B, Elsevier, 2012, 718, pp.279-294. <10.1016/j.physletb.2012.10.049>


http://hal.in2p3.fr/in2p3-00723482
Contributeur : Emmanuelle Vernay <>
Soumis le : vendredi 10 août 2012 - 09:29:43
Dernière modification le : mercredi 27 juillet 2016 - 14:48:48

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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, Elsevier, 2012, 718, pp.279-294. <10.1016/j.physletb.2012.10.049>. <in2p3-00723482>

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