Infrared behavior of one-loop QCD amplitudes at next-to-next-to-leading order

被引：213

作者：

Bern, Z ^{[1
]}

Del Duca, V

Kilgore, WB

Schmidt, CR

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

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

[4] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW D | 1999年 / 60卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.60.116001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present universal factorization formulas describing the behavior of one-loop QCD amplitudes as external momenta become either soft or collinear. Our results are valid to all orders in the dimensional regularization parameter, epsilon. Terms through O(epsilon(2)) can contribute in infrared divergent phase space integrals associated with next-to-next-to-leading order jet cross sections. [S0556-2821(99)07417-2].

引用

页数：25

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