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.

K. AAMODT, B. ABELEV, A. ABRAHANTES QUINTANA, D. ADAMOVÁ, A.M. ADARE, M.M. AGGARWAL, et al. (2012). Particle-Yield Modification in Jetlike Azimuthal Dihadron Correlations in Pb-Pb Collisions at sqrt(s_NN)= 2.76 TeV. PHYSICAL REVIEW LETTERS, 108(9), 1-11 [10.1103/PhysRevLett.108.092301].

Particle-Yield Modification in Jetlike Azimuthal Dihadron Correlations in Pb-Pb Collisions at sqrt(s_NN)= 2.76 TeV.

AGOSTINELLI, ANDREA;A. ALICI;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;FALCHIERI, DAVIDE;GUERZONI, BARBARA;SCIOLI, GILDA;
2012

Abstract

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.
2012
K. AAMODT, B. ABELEV, A. ABRAHANTES QUINTANA, D. ADAMOVÁ, A.M. ADARE, M.M. AGGARWAL, et al. (2012). Particle-Yield Modification in Jetlike Azimuthal Dihadron Correlations in Pb-Pb Collisions at sqrt(s_NN)= 2.76 TeV. PHYSICAL REVIEW LETTERS, 108(9), 1-11 [10.1103/PhysRevLett.108.092301].
K. AAMODT; B. ABELEV; A. ABRAHANTES QUINTANA; D. ADAMOVÁ; A.M. ADARE; M.M. AGGARWAL; G. AGLIERI RINELLA; A.G. AGOCS; A. AGOSTINELLI; S. AGUILAR SALAZA...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/118446
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