Phenomenology of multiple parton radiation in semi-inclusive deep-inelastic scattering

被引：43
|
作者：
Nadolsky, PM [1 ]
Stump, DR [1 ]
Yuan, CP [1 ]
机构：
[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
来源：
PHYSICAL REVIEW D | 2001年 / 64卷 / 11期
关键词：
D O I：
10.1103/PhysRevD.64.114011
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the current region of semi-inclusive deep-inelastic scattering (DIS) l+A-->l' + B + X, most events are accompanied by the intensive radiation of soft and collinear partons, which cannot be reliably described at any fixed order of perturbative QCD. In this paper, a resummation formalism that describes such multiple parton radiation is compared to the DESY-HERA data on semi-inclusive DIS, including the distributions of energy flow and charged particle multiplicity. We show that the resummation of multiple parton radiation improves the agreement between the theory and the data. We make some suggestions on further experimental study of multiple parton radiation at HERA.
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页数：15
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