期刊论文、会议论文

Zhang, Ben-Wei（张本威）

英文

Nuclear Physics A

0375-9474

2007

783

1-4

551-554

2nd International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

JUN 09-16, 2006

Pacific Grove q, CA

Huazhong Normal Univ, Inst Particle Phys, Wuhan 430070, Peoples R China.^Univ Regensburg, Inst Theoret Phys, D-8400 Regensburg, Germany.^Texas A&M Univ, Cyclotron Inst, College Stn, TX 77843 USA.^Lawrence Berkeley Lab, Nucl Sci Div, Berkeley, CA 94720 USA.

PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS

ELSEVIER SCIENCE BV

10.1016/j.nuclphysa.2006.11.114

本校为第一且通讯机构

Quark-quark double scattering in eA DIS and its contribution to quark and anti-quark fragmentation functions are investigated with the generalized factorization of the relevant twist-four processes in pQCD. It is shown that the resulting modifications to quark and anti-quark fragmentation functions are different. While the numerical size of these effects cannot be determined from pQCD, the structure of our result leads to a number of qualitative predictions for the relative size of the effect for different hadrons. These qualitative predictions agree with the multip...