Soft-gluon resummation effects on parton distributions

被引:27
作者
Corcella, G [1 ]
Magnea, L
机构
[1] CERN, Dept Phys, Div Theory, CH-1211 Geneva, Switzerland
[2] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy
[3] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
来源
PHYSICAL REVIEW D | 2005年 / 72卷 / 07期
关键词
D O I
10.1103/PhysRevD.72.074017
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We gauge the impact of soft-gluon resummation on quark distributions by performing a simple fit of deep inelastic scattering structure function data using next-to-leading order (NLO) and next-to-leading-logarithmic- (NLL)-resummed coefficient functions. We make use of NuTeV charged-current data, as well as New Muon Collaboration (NMC) and Bologna-CERN-Dubna-Munich-Saclay (BCDMS) neutral-current results, which probe large values of x. Our results suggest that the inclusion of resummation effects in global fits of parton distributions is both feasible and desirable, in order to achieve at large x the accuracy goals of the LHC physics program.
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页数:10
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