NLO twist-3 contributions toB→πform factors inkTfactorization
نویسندگان
چکیده
منابع مشابه
On the Twist 2 and Twist 3 Contributions to the Spin-dependent Electroweak Structure Functions
The twist 2 and twist 3 contributions of the polarized deep-inelastic structure functions are calculated both for neutral and charged current interactions using the operator product expansion in lowest order in QCD. The relations between the different structure functions are determined. New integral relations are derived between the twist 2 contributions of the structure functions g3(x,Q ) and ...
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We discuss the relations between the twist 2 and twist 3 contributions to polarized deep-inelastic scattering structure functions both for neutral and charged current interactions which are predicted by the operator product expansion in lowest order in QCD. INTRODUCTION In the case of polarized deep inelastic scattering the cross sections depend on (up to) three unpolarized Fi(x,Q 2)3i=1 and fi...
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We consider diagrams with up to four t-channel gluons in order to specify gluonic twist-four contributions to deep inelastic structure functions. This enables us to extend the method developed by R.K.Ellis, W.Furmanski, and R. Petronzio (EFP) [1] to the gluonic case. The method is based on low-order Feynman diagrams in combination with a dimensional analysis. It results in explicitly gauge inva...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2014
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.89.094004