Singlet [Formula Presented] structure function in the next-to-leading order

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

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Following a previous study of the one-loop factorization of the nonsinglet (Formula presented) structure function of the nucleon, 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 Burkardt-Cottingham sum rule is nominally satisfied at this order.

Original languageEnglish (US)
Pages (from-to)6
Number of pages1
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number9
StatePublished - 2001
Externally publishedYes

ASJC Scopus subject areas

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

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