HEAVY-QUARK FRAGMENTATION TO BARYONS CONTAINING 2 HEAVY QUARKS

被引:89
作者
FALK, AF
LUKE, M
SAVAGE, MJ
WISE, MB
机构
[1] STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309
[2] CALTECH,PASADENA,CA 91125
来源
PHYSICAL REVIEW D | 1994年 / 49卷 / 01期
关键词
D O I
10.1103/PhysRevD.49.555
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We discuss the fragmentation of a heavy quark to a baryon containing two heavy quarks of mass m(Q) much greater than LAMBDA(QCD). In this limit the heavy quarks first combine perturbatively into a compact diquark with a radius small compared to 1/LAMBDA(QCD), which interacts with the light hadronic degrees of freedom exactly as does a heavy antiquark. The subsequent evolution of this QQ diquark to a QQq baryon is identical to the fragmentation of a heavy antiquark to a meson. We apply this analysis to the production of baryons of the form ccq, bbq, and bcq.
引用
收藏
页码:555 / 558
页数:4
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