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

Andrei Belitsky, X. Ji, W. Lu, J. Osborne

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Following a previous study of the one-loop factorization of the nonsinglet g2 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)
Article number094012
Pages (from-to)940121-940126
Number of pages6
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume63
Issue number9
StatePublished - 2001
Externally publishedYes

Fingerprint

Structure-function
factorization
Factorization
Sum Rules
gluons
Twist
sum rules
Shell
Sector
sectors
Scattering
Coefficient
coefficients
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Singlet g2 structure function in the next-to-leading order. / Belitsky, Andrei; Ji, X.; Lu, W.; Osborne, J.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 63, No. 9, 094012, 2001, p. 940121-940126.

Research output: Contribution to journalArticle

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