Charm as a key to diffractive processes

被引：10

作者：

Buchmuller, W ^{[1
]}

McDermott, MF ^{[1
]}

Hebecker, A ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT APPL MATH & THEORET PHYS,CAMBRIDGE CB3 9EW,ENGLAND

来源：

PHYSICS LETTERS B | 1997年 / 404卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)00560-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The diffractive production of open charm in deep-inelastic scattering is studied in the semiclassical approach which has been proposed recently. In this approach, the leading order process contains a charm quark pair and an additional gluon in the diffractive final state. The p(perpendicular to)-spectrum and the diffractive mass distribution are evaluated and compared with predictions based on perturbative two-gluon exchange calculations for charm quark pair production. It is shown that the p(perpendicular to)-spectrum provides a clear test of the underlying partonic process whereas the diffractive mass distribution reflects the non-perturbative mechanism of colour neutralization. (C) 1997 Elsevier Science B.V.

引用

页码：353 / 361

页数：9

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