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| Titre : |
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Transverse Momentum Distribution and Nuclear Modification Factor of Charged Particles in p-Pb Collisions at sqrt{s_NN} = 5.02 TeV |
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| Auteur : |
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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 |
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| Laboratoire : |
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| Résumé : |
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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. |
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| Collaboration/Projet : |
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ALICE |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2013 |
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| Nom du périodique : |
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| Physical Review Letters (Phys. Rev. Lett.) |
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American Physical Society |
| ISSN |
0031-9007 (eISSN : 1079-7114) |
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| Volume : |
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110 |
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| Page/Article : |
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082302 |
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| Identifiant local : |
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LPSC12295 |
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| Commentaire : |
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16 pages, 3 figures; submitted to Phys. Rev. Lett ; see paper for full list of authors |
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