The QCD Pomeron with optimal renormalization

The QCD Pomeron with optimal renormalization
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DOI:
10.1134/1.568145
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发表时间:
1999-01
期刊:
Journal of Experimental and Theoretical Physics Letters
影响因子:
--
通讯作者:
S. Brodsky;V. Fadin;V. Kim;L. Lipatov;G. Pivovarov
S. Brodsky;V. Fadin;V. Kim;L. Lipatov;G. Pivovarov
中科院分区:
其他
文献类型:
--
作者:
S. Brodsky;V. Fadin;V. Kim;L. Lipatov;G. Pivovarov

文献摘要

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结果表明,在Brodsky-Lepage-麦肯齐(BLM)最优尺度设置下,用非阿贝尔物理重整化方案计算Balitsky-Fadin-Kuraev-Lipatov(BFKL)方程得到的QCD Pomeron截距的次领先阶(NLO)修正,并没有出现该方案中遇到的严重问题. BLM方法中NLO BFKL Pomeron截距的一个显著特征是它产生了重要的近似共形不变性。
It is shown that the next-to-leading order (NLO) corrections to the QCD Pomeron intercept obtained from the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equation, when evaluated in non-Abelian physical renormalization schemes with Brodsky-Lepage-Mackenzie (BLM) optimal scale setting, do not exhibit the serious problems encountered in thescheme. A striking feature of the NLO BFKL Pomeron intercept in the BLM approach is that it yields an important approximate conformal invariance.