QCD FORMULATION OF CHARM PRODUCTION IN DEEP-INELASTIC SCATTERING AND THE SEA-QUARK GLUON DICHOTOMY

被引:44
|
作者
AIVAZIS, MAG
OLNESS, FI
TUNG, WK
机构
[1] UNIV OREGON,INST THEORET SCI,EUGENE,OR 97403
[2] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510
关键词
D O I
10.1103/PhysRevLett.65.2339
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Gluon-initiated contributions to deep-inelastic-scattering processes, such as charm production, can be comparable in magnitude to the eeleading-orderee 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.
引用
收藏
页码:2339 / 2342
页数:4
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