Target mass corrections and higher twist effects in polarized deep-inelastic scattering

Abstract

We perform a next-to-leading-order QCD analysis to world data on polarized structure functions $g_1$ and $g_2$ in a fixed-flavor number scheme. We include target mass corrections and higher twist effects in our fitting procedure and study their non-negligible effects on physically interesting quantities. Twist-3 contributions to both polarized structure functions are determined, and the accuracy of the extracted polarized parton distribution functions is improved. ${}^3\mathrm{He}$ and ${}^3\mathrm{H}$ polarized structure functions are described based on our fit result. Moreover, sum rules are derived and compared with available theoretical and experimental results.

arXiv comment14 pages, 13 figures, 8 tables

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Cited by in corpus (9)

• Next-to-next-to-leading order QCD analysis of spin-dependent parton distribution functions and their uncertainties: Jacobi polynomials approach
• Nucleon spin structure functions at NNLO in the presence of target mass corrections and higher twist effects
• Where do we stand with a 3-D picture of the proton?
• Study of spin-dependent structure functions of ${}^3\mathrm{He}$ and ${}^3\mathrm{H}$ at NNLO approximation and corresponding nuclear corrections
• Impact of recent COMPASS data on polarized parton distributions and structure functions
• QCD analysis of structure functions in deep inelastic neutrino-nucleon scattering without using the orthogonal polynomials approach
• Parton distribution functions and QCD coupling constant from LHC and non-LHC data
• QCD analysis of valence structure functions using deep inelastic lepton-nucleon scattering
• Nucleon spin structure functions, considering target mass correction and higher twist effects at the NNLO accuracy and their transverse momentum dependence