The BFKL high energy asymptotic in the next-to-leading approximation

被引：22

作者：

Levin, E ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

来源：

NUCLEAR PHYSICS B | 1999年 / 545卷 / 1-3期

关键词：

perturbative QCD; BFKL pomeron; evolution equations; next-to-leading order corrections;

D O I：

10.1016/S0550-3213(99)00083-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss the high energy asymptotic in the next-to-leading (NLO) BFKL equation. We find a general solution for the Green functions and consider two properties of the NLO BFKL kernel: running QCD coupling and large NLO corrections to the conformal part of the kernel. Both these effects lead to Regge-BFKL asymptotic only in the limited range of energy (y = ln(s/qq(0)) less than or equal to (alpha(s))(-5/3)) and change the energy behaviour of the amplitude for higher values of energy. We confirm the oscillation in the total cross section found by D.A, Ross [SHEP-98-06, hep-ph/9804332] in the NLO BFKL asymptotic, which shows that the NLO BFKL has a serious pathology. (C) 1999 Elsevier Science B.V.

引用

页码：481 / 504

页数：24

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