Three and Two Hadron Correlations in √sNN=200 GeV Proton-Proton and Nucleus-Nucleus Collisions

被引：18

作者：

Ayala, Alejandro ^{[1
,2
]}

Jalilian-Marian, Jamal ^{[3
,4
]}

Magnin, J. ^{[2
]}

Ortiz, Antonio ^{[1
]}

Paic, G. ^{[1
]}

Elena Tejeda-Yeomans, Maria ^{[5
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico

[2] CBPF, BR-22290180 Rio De Janeiro, Brazil

[3] CUNY Bernard M Baruch Coll, Dept Nat Sci, New York, NY 10010 USA

[4] CUNY, Grad Ctr, New York, NY 10016 USA

[5] Univ Sonora, Dept Fis, Colonia Ctr, Hermosillo 83000, Sonora, Mexico

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 04期

关键词：

STRUCTURE-FUNCTION RATIOS; HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; TO-LEADING ORDER; MUON SCATTERING; ENERGY-LOSS; QCD; BREMSSTRAHLUNG; COLLABORATION; PERSPECTIVE;

D O I：

10.1103/PhysRevLett.104.042301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We compare the azimuthal correlations arising from three and two hadron production in p + p and Au + Au collisions at root s(NN) = 200 GeV. We show that in Au + Au, the two away side partons in two-to-three processes have in average a smaller and a greater path length than the average path length of the away-side parton in two-to-two processes. Since in average the particle with the shortest path length in two-to-three processes loses less energy, with respect to the away-side particle in two-to-two processes, this effect leads to a relative enhancement of the ratio of two-to-three to two-to-two processes in Au + Au compared to p + p collisions. We argue that this phenomenon may be responsible for the shape of the away side in azimuthal correlations at the Relativistic Heavy-Ion Collider.

引用

页数：4

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