Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p-Pb Collisions at sqrt{s_NN} = 5.02 TeV

Abstract : The transverse momentum (p_T) distribution of primary charged particles is measured in non single-diffractive p-Pb collisions at sqrt{s_NN} = 5.02 TeV with the ALICE detector at the LHC. The p_T spectra measured near central rapidity in the range 0.5 < p_T < 20 GeV/c exhibit a weak pseudorapidity dependence. The nuclear modification factor R_pPb is consistent with unity for p_T above 2 GeV/c. This measurement indicates that the strong suppression of hadron production at high p_T observed in Pb-Pb collisions at the LHC is not due to an initial-state effect. The measurement is compared to theoretical calculations.
Type de document :
Article dans une revue
Physical Review Letters, American Physical Society, 2013, 110, pp.082302. <10.1103/PhysRevLett.110.082302>


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Soumis le : mercredi 17 octobre 2012 - 08:22:28
Dernière modification le : mercredi 27 juillet 2016 - 14:48:48

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B. Abelev, L. Aphecetche, A. Baldisseri, A.A.E. Bergognon, H. Borel, et al.. Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p-Pb Collisions at sqrt{s_NN} = 5.02 TeV. Physical Review Letters, American Physical Society, 2013, 110, pp.082302. <10.1103/PhysRevLett.110.082302>. <in2p3-00742704>

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