Scheme-invariant NNLO evolution for unpolarized DIS structure functions
نویسندگان
چکیده
منابع مشابه
Scheme-invariant NNLO evolution for unpolarized DIS structure functions
The final HERA-II data on unpolarized deeply inelastic scattering (DIS) structure functions, combined with the present world data, will allow to reduce the experimental error on the strong coupling constant, αs(M 2 Z), to the level of 1% [1]. On the theoretical side, the next-to-leading order (NLO) analyses have intrinsic limitations which allow no better than 5% accuracy in the determination o...
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We consider the effect of exact gluon kinematics in the virtual photon-gluon impact factor at small x. By comparing with fixed order DIS scheme splitting and coefficient functions, we show that the exact kinematics results match the fixed order results well at each order, which suggests that they allow for an accurate NLL analysis of proton structure functions. We also present, available for th...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2006
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2005.08.017