Measurement of J/ψ production in pp collisions at √s=2.76 and 7 TeV with ALICE

被引：3

作者：

Arnaldi, Roberta ^{[1
]}

机构：

[1] INFN Sez Torino, I-10125 Turin, Italy

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2011年 / 38卷 / 12期

关键词：

D O I：

10.1088/0954-3899/38/12/124106

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：

We present results from the ALICE experiment on the inclusive J/psi production in pp collisions at root s = 2.76 and 7 TeV. The integrated and differential cross sections are evaluated down to p(T) = 0 in two rapidity ranges, vertical bar y vertical bar < 0.9 and 2.5 < y < 4, in the dielectron and dimuon decay channel, respectively. The measurement at root s = 2.76 TeV, the same energy as Pb-Pb collisions, provides a crucial reference for the study of hot nuclear matter effects on J/psi production. The J/psi yield in pp collisions at root s = 7 TeV has also been studied as a function of the charged particle multiplicity and first results are presented.

引用

页数：4

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