Measurement of J/Psi production in pp collisions at sqrt(s)=2.76 and 7 TeV with ALICE

Abstract

We present results from the ALICE experiment on the inclusive J/Psi production in pp collisions at sqrt(s)=2.76 and 7 TeV. The integrated and differential cross sections are evaluated down to pT=0 in two rapidity ranges, |y|<0.9 and 2.5<y<4, in the dielectron and dimuon decay channel respectively. The measurement at sqrt(s)=2.76 TeV, the same energy as Pb-Pb collisions, provides a crucial reference for the study of hot nuclear matter effects on J/Psi production. The J/Psi yield in pp collisions at sqrt(s)=7 TeV has also been studied as a function of the charged particle multiplicity and first results are presented.

4 pages, 4 figures, parallel talk at Quark Matter 2011, Annecy, France

References in corpus (4)

• Phobos results on charged particle multiplicity and pseudorapidity distributions in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultra-relativistic energies
• World data of J/psi production consolidate NRQCD factorization at NLO
• Rapidity and transverse momentum dependence of inclusive J/$\psi$ production in pp collisions at $\sqrt{s}=7$ TeV
• J/Psi production at forward rapidity in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV, measured with the ALICE detector

Cited by in corpus (5)

• Centrality, rapidity, and transverse-momentum dependence of gluon shadowing and antishadowing on $J/\psi$ production in $d$Au collisions at $\sqrt{s}$=200 GeV
• J/Psi production at forward rapidity in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV, measured with the ALICE detector
• Quarkonium production measurements with the ALICE detector at the LHC
• Quarkonia Measurements with ALICE at the LHC
• Production of J/$\Psi$-Particles at RHIC and LHC energies: An Alternative `Psi'-chology