FINAL-STATES IN HEAVY QUARK LEPTOPRODUCTION AT SMALL-X

被引：85

作者：

MARCHESINI, G

WEBBER, BR

机构：

[1] INFN,COLLEGATO GRP,PARMA,ITALY

[2] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

NUCLEAR PHYSICS B | 1992年 / 386卷 / 01期

关键词：

D O I：

10.1016/0550-3213(92)90181-A

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The process of heavy quark production in ep collisions at very high energies is investigated in detail using a new Monte Carlo simulation of QCD which includes leading contributions in the small-x region. The simulation generates a gluon structure function which satisfies the Lipatov evolution equation, together with the associated initial-state gluon radiation, and combines this with the off-mass-shell gluon-photon fusion cross section. The resulting heavy quark and associated final-state hadron distributions are asymptotically different from those of the conventional treatment based on Altarelli-Parisi evolution and on-shell gluon-photon fusion, but the differences are not large at HERA energies.

引用

页码：215 / 235

页数：21

共 38 条

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