QCD FRAGMENTATION FUNCTIONS FOR B-C AND B-C-ASTERISK PRODUCTION

被引：188

作者：

BRAATEN, E ^{[1
]}

CHEUNG, K ^{[1
]}

YUAN, TC ^{[1
]}

机构：

[1] UNIV CALIF DAVIS, DEPT PHYS, DAVIS INST HIGH ENERGY PHYS, DAVIS, CA 95616 USA

来源：

PHYSICAL REVIEW D | 1993年 / 48卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.48.R5049

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The dominant production mechanism for (b) over bar c bound states with a large transverse momentum in high energy processes is the production of a high energy (b) over bar antiquark, followed by its fragmentation into the (b) over bar c state. We calculate the fragmentation functions for the production of the S-wave states B-c and B-c* to leading order in the QCD coupling constant. The fragmentation probabilities for (b) over bar --> B-c and (b) over bar --> B-c* are approximately 3.8 X 10(-4) and 5.4 X 10(-4), while those for c --> B-c and c --> B-c* are smaller by two orders of magnitude.

引用

页码：R5049 / R5054

页数：6

共 21 条

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