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Aamodt, K.; Aphecetche, Laurent; Arbor, N.; Baldisseri, A.; Baldit, A.; Barret, V.; Bastid, N.; Batigne, Guillaume; Belikov, I.; Borel, H.; Boyer, B.; Bregant, M.; Castillo Castellanos, J.; Charvet, J.L.; Cheshkov, C.; Cheynis, B.; Coffin, J.-P.; Conesa Balbastre, G.; Conesa del Valle, Z.; Crochet, P.; Delagrange, H.; Driga, O.; Ducroux, L.; Dupieux, P.; Espagnon, B.; Estienne, Magali; Faivre, J.; Furget, C.; Germain, Marie; Geuna, C.; Grossiord, J.-Y.; Guernane, R.; Guilbaud, Maxime; Hadjidakis, C.; Hippolyte, B.; Hrivnacova, I.; Ichou, R.; Jangal, S.; Kox, S.; Kuhn, C.; Lardeux, A.; Le Bornec, Y.; Lefevre, F.; Lenhardt, M.; Lopez, X.; Luquin, L.; Maire, A.; Manso, F.; Mao, Y.; Martinez Garcia, Gines; Mas, A.; Massacrier, L.; Michalon, A.; Pal, S.; Pillot, Philippe; Porteboeuf-Houssais, S.; Rakotozafindrabe, A.; Real, J.S.; Rosnet, P.; Roy, C.; Schutz, Y.; Stocco, Diego; Suire, C.; Tapia Takaki, J.D.; Tieulent, R.; Uras, A.; Valencia Palomo, L.; Vernet, R.; Vulpescu, B.; Wan, R.; Yang, H.; Zoccarato, Y.
Physical review letters, 2012, Letnik: 108Journal Article
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.
