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

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

doi:10.1103/PhysRevD.63.094012

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

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

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31 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 language	English (US)
Article number	094012
Journal	Physical Review D
Volume	63
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.63.094012
State	Published - 2001
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.63.094012

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abstract = "Following a previous study of the one-loop factorization of the nonsinglet g2 structure function of the nucl{\'e}on, 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",

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AU - Belitsky, A. V.

AU - Ji, Xiangdong

AU - Lu, Wei

AU - Osborne, Jonathan

PY - 2001

Y1 - 2001

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AB - 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

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

Abstract

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