| Thème(s) : |
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| Titre : |
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Particle-yield modification in jet-like azimuthal di-hadron correlations in Pb-Pb collisions at $\sqrt(s_NN)$ = 2.76 TeV |
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| Auteur : |
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K. Aamodt, L. Aphecetche1, N. Arbor2, A. Baldisseri3, A. Baldit4, V. Barret4, N. Bastid4, G. Batigne1, I. Belikov5, H. Borel3, B. Boyer6, M. Bregant1, J. Castillo Castellanos3, J.L. Charvet3, C. Cheshkov7, B. Cheynis7, J.-P. Coffin5, G. Conesa Balbastre2, Z. Conesa Del Valle5, P. Crochet4, H. Delagrange1, O. Driga1, L. Ducroux7, P. Dupieux4, B. Espagnon6, M. Estienne1, J. Faivre2, C. Furget2, M. Germain1, C. Geuna3, J.-Y. Grossiord7, R. Guernane2, M. Guilbaud7, C. Hadjidakis6, B. Hippolyte5, I. Hrivnacova6, R. Ichou4, S. Jangal5, S. Kox2, C. Kuhn5, A. Lardeux1, Y. Le Bornec6, F. Lefevre1, M. Lenhardt1, X. Lopez4, L. Luquin1, A. Maire5, F. Manso4, Y. Mao2, G. Martınez Garcıa1, A. Mas1, L. Massacrier7, A. Michalon5, S. Pal3, P. Pillot1, S. Porteboeuf-Houssais, A. Rakotozafindrabe3, J.S. Real2, P. Rosnet4, C. Roy5, Y. Schutz1, C. Suire6, J.D. Tapia Takaki6, R. Tieulent7, A. Uras7, L. Valencia Palomo6, R. Vernet8, B. Vulpescu4, R. Wan5, H. Yang3, Y. Zoccarato7 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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Alice |
| Résumé : |
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The yield of charged particles associated with high-pT trigger particles (8 < pT < 15 GeV/c) is measured with the ALICE detector in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV relative to proton-proton collisions at the same energy. The conditional per-trigger yields are extracted from the narrow jet-like correlation peaks in azimuthal di-hadron correlations. In the 5% most central collisions, we observe that the yield of associated charged particles with transverse momenta pT > 3 GeV/c on the away-side drops to about 60% of that observed in pp collisions, while on the near-side a moderate enhancement of 20-30% is found. |
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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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2012 |
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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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108 |
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| Page/Article : |
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092301 |
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| Identifiant local : |
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LPSC11209 |
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| Commentaire : |
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submitted to PRL see paper for full list authors |
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