Excited state contributions to the heavy baryon fragmentation functions ina quark-diquark model - art. no. 014021

Authors
Adamov, A Goldstein, GR
Citation
A. Adamov et Gr. Goldstein, Excited state contributions to the heavy baryon fragmentation functions ina quark-diquark model - art. no. 014021, PHYS REV D, 6401(1), 2001, pp. 4021
Citations number
39
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6401
Issue
1
Year of publication
2001
Database
ISI
SICI code
0556-2821(20010701)6401:1<4021:ESCTTH>2.0.ZU;2-4
Abstract
Spin dependent fragmentation functions for heavy flavor quarks to fragment into heavy baryons are calculated in a quark-diquark model. The production of intermediate spin 1/2 and 3/2 excited states is explicitly included. The resulting Lambda (b) production rate and polarization at CERN LEP energies are in agreement with experiment. The Lambda (c) and Xi (c) functions are also obtained. The spin independent f(1)(z) is compared to data. The integr ated values for production rates agree with the data.