Particle-Yield Modification in Jetlike Azimuthal Dihadron Correlations in Pb-Pb Collisions at root S-NN=2.76 TeV

0384870 - ÚJF 2013 RIV US eng J - Článek v odborném periodiku
Aamodt, K. - Adamová, Dagmar - Adare, A. - Bielčík, J. - Bielčíková, Jana - Čepila, J. - Krus, M. - Kushpil, Svetlana - Kushpil, Vasilij - Pachr, M. - Mareš, Jiří A. - Petráček, Vojtěch - Petráň, M. - Pospíšil, V. - Šmakal, R. - Šumbera, Michal - Tlustý, D. - Vajzer, Michal - Wagner, Vladimír - Zach, Č. - Závada, Petr … celkem 937 autorů
Particle-Yield Modification in Jetlike Azimuthal Dihadron Correlations in Pb-Pb Collisions at root S-NN=2.76 TeV.
Physical Review Letters. Roč. 108, č. 9 (2012), s. 092301. ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT LA08015
Institucionální podpora: RVO:61389005 ; RVO:68378271
Klíčová slova: heavy ion collisions
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
Impakt faktor: 7.943, rok: 2012

The yield of charged particles associated with high-pt trigger particles (8 < p(t) < 15 GeV/c) is measured with the ALICE detector in Pb-Pb collisions at root S-NN = 2.76 TeV relative to proton-proton collisions at the same energy. The conditional per-trigger yields are extracted from the narrow jetlike correlation peaks in azimuthal dihadron correlations. In the 5% most central collisions, we observe that the yield of associated charged particles with transverse momenta p(t) > 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.
Trvalý link: http://hdl.handle.net/11104/0216959