Singlet g2 structure function in the next-to-Ieading order

A. V. Belitsky, Xiangdong Ji, Wei Lu, Jonathan Osborne

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Following a previous study of the one-loop factorization of the nonsinglet g2 structure function of the nucléon, we present in this paper the next-to-leading order coefficient functions in the singlet sector. To obtain the result, the partonic processes of virtual Compton scattering off two and three on-shell gluons are calculated. A key step in achieving the correct factorization is to separate the correct twist-two contribution. The BurkardtCottingham sum rule is nominally satisfied at this order. X

Original languageEnglish (US)
Article number094012
JournalPhysical Review D
Volume63
Issue number9
DOIs
StatePublished - Dec 1 2001
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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