The gluon content of the pion from high- pt photon production

A fit to the large p t direct photon cross-sections for the reactions π± p → γX, using complete beyond leading logarithm OCD expressions, allows the determination of the content of gluons and valence quarks inside the pion and defines the shape of the gluon structure function for x > 0.2. The OCD...

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Bibliographic Details
Published in:Physics letters. B 1989-12, Vol.233 (3), p.517-521
Main Authors: Aurenche, P., Baier, R., Fontannaz, M., Kienzle-Focacci, M.N., Werlen, M.
Format: Article
Language:English
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Summary:A fit to the large p t direct photon cross-sections for the reactions π± p → γX, using complete beyond leading logarithm OCD expressions, allows the determination of the content of gluons and valence quarks inside the pion and defines the shape of the gluon structure function for x > 0.2. The OCD scale parameter λ MS is good with the most precise deep inelastic scattering determinations.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(89)91351-8