Dimensional regularisation and factorisation schemes in the BFKL equation at subleading level
Dimensional regularisation and factorisation schemes in the BFKL equation at subleading level
复制标题
次领先水平 BFKL 方程中的维数正则化和因式分解方案
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
D. Colferai
中科院分区:
文献类型:
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作者:
M. Ciafaloni;D. Colferai
We study the anomalous dimensions and coefficient functions generated by the BFKL equation in 4+2e dimensions, by investigating both running coupling effects, and the inclusion of the full next-to-leading kernel. After generalising the Fourier representation of the solutions to this case, we analyse the β-dependent renormalisation-group factorisation of anomalous dimension and coefficient contributions to the gluon density. We derive on this basis the normalisation factor of the Q0-scheme with respect to the -scheme, including β-dependent corrections to it, and we outline the derivation of the full next-to-leading contributions. We also provide an expression for the resummed γqg in the -scheme which exhibits its universality and is explicit up to quadratures.
DOI:
10.1016/j.nuclphysb.2004.03.030
发表时间:
2004-03
期刊:
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影响因子:
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作者:
S. Moch;J. Vermaseren;A. Vogt
通讯作者:
S. Moch;J. Vermaseren;A. Vogt