Nuclear modification of high-pT hadron spectra in high-energy p+A collisions

被引：29

作者：

Xu, Rong ^{[1
,2
]}

Deng, Wei-Tian ^{[3
]}

Wang, Xin-Nian ^{[1
,2
,4
]}

机构：

[1] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China

[2] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China

[3] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 05期

关键词：

LARGE TRANSVERSE-MOMENTUM; PARTICLE-PRODUCTION; PARTON; QUARK; SUPPRESSION; PLUS; PA; PP;

D O I：

10.1103/PhysRevC.86.051901

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：

Multiple parton scatterings in high-energy p + A collisions involve multiparton correlation inside the projectile and color coherence of multiple jets, which will lead to nuclear modification of final hadron spectra relative to that in p + p collisions. Such modifications of final hadron spectra in p + A collisions are studied within the HIJING 2.1 model. Besides parton shadowing and transverse momentum broadening, which influence final hadron spectra at intermediate p(T), modification of parton flavor composition due to multiple scattering and hadronization of many-parton jets system are shown to lead to suppression of final hadrons at large p(T) in p + A collisions at the CERN Large Hadron Collider.

引用

页数：6

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