Neutral meson production in pp and Pb-Pb collisions measured by ALICE at the LHC

被引：2

作者：

Marin, A. ^{[1
,2
,3
]}

机构：

[1] Div Res, Darmstadt, Germany

[2] ExtreMe Matter Inst EMMI, Darmstadt, Germany

[3] GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany

来源：

NUCLEAR PHYSICS A | 2014年 / 931卷

关键词：

Hadron production; Heavy-ion collisions; LHC; LENGTH;

D O I：

10.1016/j.nuclphysa.2014.09.083

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The midrapidity pi(0) nuclear modification factor, RAA, at root sNN = 2.76 TeV in 6 centrality classes as well as the corresponding pi(0) invariant yields in Pb Pb and in pp collisions are presented. The transverse momentum range covered is 0.6 (0.4) GeV/c < pT <12 (10) GeV/c for Pb Pb (pp) collisions. A suppression of neutral pions increasing with centrality is observed. The yield of charged particles associated with a high PT neutral pion trigger (8 GeV/c <PT < 16 GeV/c) is measured in pp and Pb-Pb collisions at root sNN = 2.76 TeV. The conditional per-trigger yield modification factor in the near and away side is in agreement with the measured one for charged particles. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：438 / 443

页数：6

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