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

B. Abelev; L. Aphecetche; A. Baldisseri; A.A.E. Bergognon; H. Borel; M. Bregant; J.L. Charvet; c. Cheshkov; B. Cheynis; H. Delagrange; O. Driga; L. Ducroux; M. Estienne; M. Germain; C. Geuna; J.-Y. Grossiord; M. Guilbaud; B. Hippolyte; C. Kuhn; A. Lardeux; A. Mas; L. Massacrier; P. Pillot; C. Roy; S. Senyukov; A. Shabetai; D. Stocco; R. Tieulent; A. Uras; R. Vernet; Y. Zoccarato; Y.W. Baek; V. Barret; N. Bastid; P. Crochet; P. Dupieux; R. Ichou; X. Lopez; F. Manso; M. Marchisone; S. Porteboeuf-Houssais; P. Rosnet; B. Vulpescu; X. Zhang; N. Arbor; G. Conesa Balbastre; J. Faivre; C. Furget; R. Guernane; S. Kox; J.S. Real; C. Silvestre

HAL: in2p3-00742704, version 1

arXiv: 1210.4520

DOI: 10.1103/PhysRevLett.110.082302

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Physical Review Letters 110 (2013) 082302

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

B. Abelev, L. Aphecetche¹, A. Baldisseri², A.A.E. Bergognon¹, H. Borel², M. Bregant¹, J.L. Charvet², c. Cheshkov³, B. Cheynis³, H. Delagrange¹, O. Driga¹, L. Ducroux³, M. Estienne¹, M. Germain¹, C. Geuna², J.-Y. Grossiord³, M. Guilbaud³, B. Hippolyte⁴, C. Kuhn⁴, A. Lardeux¹, A. Mas¹, L. Massacrier¹, P. Pillot¹, C. Roy⁴, S. Senyukov⁴, A. Shabetai¹, D. Stocco¹, R. Tieulent³, A. Uras³, R. Vernet⁵, Y. Zoccarato³, Y.W. Baek⁶, V. Barret⁶, N. Bastid⁶, P. Crochet⁶, P. Dupieux⁶, R. Ichou⁶, X. Lopez⁶, F. Manso⁶, M. Marchisone⁶, S. Porteboeuf-Houssais⁶, P. Rosnet⁶, B. Vulpescu⁶, X. Zhang⁶, N. Arbor⁷, G. Conesa Balbastre⁷, J. Faivre⁷, C. Furget⁷, R. Guernane⁷, S. Kox⁷, J.S. Real⁷, C. Silvestre⁷

For the ALICE collaboration(s)

(2013)

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.

1:	SUBATECH - Laboratoire SUBATECH Nantes

2:	IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)

3:	IPNL - Institut de Physique Nucléaire de Lyon

4:	DRS-IPHC - Département Recherches Subatomiques

5:	CC IN2P3 - Centre de Calcul de l'inst. national de phy. nucléaire et de phy. des particules

6:	LPC-CLERMONT - Laboratoire de Physique Corpusculaire de Clermont-Ferrand

7:	LPSC - Laboratoire de Physique Subatomique et de Cosmologie

Subject(s)

Physics/High Energy Physics - Experiment

Physics/Nuclear Experiment

Fulltext link:

http://fr.arXiv.org/abs/1210.4520


in2p3-00742704, version 1
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From: Sylvie Florès <>
Submitted on: Wednesday, 17 October 2012 08:22:28
Updated on: Monday, 25 February 2013 10:27:34