A general derivation of differential cross section
in quark–quark and quark–gluon scatterings at fixed impact
parameter

doi:10.1007/s11467-009-0064-0

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Front. Phys. ›› 2009, Vol. 4 ›› Issue (4) : 509-516. DOI: 10.1007/s11467-009-0064-0

Research articles

A general derivation of differential cross section in quark–quark and quark–gluon scatterings at fixed impact parameter

Shou-wan CHEN (陈寿万)¹,Jian DENG (邓建)¹,Qun WANG (王群)¹,Jian-hua GAO (高建华)²,

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Abstract

We propose a general derivation of differential cross section in quark–quark and quark–gluon scatterings at fixed impact parameters. The derivation is well defined and free of ambiguity in the conventional one. The approach can be applied to a variety of partonic and hadronic scatterings in low- or high-energy particle collisions.

Keywords

polarization / heavy-ion collision / impact parameter / mixed representation

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Shou-wan CHEN (陈寿万), Jian DENG (邓建), Qun WANG (王群), Jian-hua GAO (高建华),. A general derivation of differential cross section in quark–quark and quark–gluon scatterings at fixed impact parameter. Front. Phys., 2009, 4(4): 509‒516 https://doi.org/10.1007/s11467-009-0064-0