Target mass corrections for spin-dependent structure functions in collinear factorization
نویسندگان
چکیده
منابع مشابه
Target Mass Corrections to the Spin-dependent Structure Functions
At the energies at which most data in polarized deep-inelastic scattering have been taken the ratio M/Q, where M is the mass of the nucleon, is not negligible. The target mass corrections should be taken into account to analyze the Q dependence of structure functions at low Q and to extract information of dynamical higher twist effects at moderate energies. We calculated the target mass correct...
متن کاملTarget Mass Corrections to QCD Bjorken Sum Rule for Nucleon Spin Structure Functions∗
We discuss the possible target mass corrections in the QCD analysis of nucleon’s spin-dependent structure functions measured in the polarized deep-inelastic leptoproduction. The target mass correction for the QCD Bjorken sum rule is obtained from the Nachtmann moment and its magnitude is estimated employing positivity bound as well as the experimental data for the asymmetry parameters. We also ...
متن کاملTarget mass corrections and twist-3 in the nucleon spin structure functions
The Nachtmann moment is employed to study the contribution of twist-3 operator to the nucleon spin structure functions. Target mass corrections to the CornwallNorton moments of the spin structure functions g1,2 are discussed. It is found that the corrections play a sizeable role to the contribution of the twist-3 d̃2 extracted from the Cornwall-Norton moments. PACS: 13.60.Hb, 12.38.Aw, 12.38Cy; ...
متن کاملTarget mass corrections to matrix elements in nucleon spin structure functions
Target mass corrections to the twist-4 terms f̃ 2 as well as to the leading-twist ã2 are discussed. PACS: 13.60.Hb, 12.38.Aw, 12.38Cy; 12.40.Dh
متن کاملPhoton Structure Functions: Target Photon Mass Effects and QCD Corrections
We present a systematic analysis of the polarised and unpolarised processes e+ e → e + e − X in the deep inelastic limit and study the effects of target photon mass (virtuality) on the photon structure functions. The effect of target photon virtuality manifests as new singly polarised structure functions and also alters the physical interpretation of the unpolarised structure functions. The phy...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 2008
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2008.10.036