Fragmentation functions for baryons in a quark-diquark model

被引：65

作者：

Adamov, A

Goldstein, GR

机构：

[1] Department of Physics, Tufts University, Medford, MA

来源：

PHYSICAL REVIEW D | 1997年 / 56卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.56.7381

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A perturbative QCD calculation of heavy flavor quark fragmentation into heavy flavor baryons is developed along the lines of corresponding heavy meson models. The nonperturbative formation of the baryon is accomplished by implementing the quark-diquark model of the baryons. Diquark color form factors are used to enable the integration over the virtual heavy quark momentum. The resulting spin-independent functions for charmed and bottom quarks to fragment into charmed and bottom baryons with spin 1/2 and 3/2 are compared with recent data. Predictions are made for the spin-dependent fragmentation functions as well, particularly for the functions (g) over cap(1) and (h) over cap(1) in the case of spin 1/2 baryons.

引用

页码：7381 / 7391

页数：11

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