Threshold resummation for the inclusive-hadron cross section in pp collisions -: art. no. 114004

被引：78

作者：

de Florian, D

Vogelsang, W

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina

[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[3] Brookhaven Natl Lab, RIKEN, BNL, Res Ctr, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.71.114004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp -> hX at high transverse momentum of the hadron h. These corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We perform the resummation to next-to-leading logarithmic accuracy. We present numerical results for the fixed-target regime and find enhancements over the next-to-leading order cross section, which significantly improve the agreement between theoretical predictions and data. We also apply the resummation for Relativistic Heavy-Ion Collider kinematics and find that subleading terms appear to play a rather important role here.

引用

页数：12

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