APS » PROLA » Phys. Rev. Lett. » Volume 65 » Issue 19

Phys. Rev. Lett. 65, 2339 - 2342 (1990)

QCD formulation of charm production in deep-inelastic scattering and the sea-quark–gluon dichotomy
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M. A. G. Aivazis, Fredrick I. Olness, and Wu-Ki Tung
Illinois Institute of Technology, Chicago, Illinois 60616(1)
Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403(2)
Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510(1),(3)

Received 13 June 1990

Gluon-initiated contributions to deep-inelastic-scattering processes, such as charm production, can be comparable in magnitude to the ‘‘leading-order’’ sea-quark processes. A proper next-to-leading-order calculation in QCD confirms this and yields distinct dependences of these two contributions on the kinematic variables and on the charm-quark mass. These results imply that previous analyses of charm-production data to extract the strange and charm content of the nucleon, as well as the precise determination of standard-model parameters based on these analyses, need to be reassessed.


©1990 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v65/p2339
DOI: 10.1103/PhysRevLett.65.2339
PACS: 13.15.-f, 12.38.Bx, 13.60.Hb

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