Yang, Jian-Jun and Schmidt, Ivan (2003) Mass suppression in octet baryon production. PHYSICAL REVIEW D, 67 (11): 114023. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
There is a striking suppression of the cross section for production of octet baryons in e(+)e(-) annihilation, as the mass of the produced hadron increases. We present a simple parametrization for the fragmentation functions into octet baryons guided by two input models: the SU(3) flavor symmetry part is given by a quark-diquark model, and the baryon mass suppression part is inspired by the string model. We need only eight free parameters to describe the fragmentation functions for all octet baryons. These free parameters are determined by a fit to the experimental data of octet baryon production in e(+)e(-) annihilation. Then we apply the obtained fragmentation functions to predict the cross section of the octet baryon production in charged lepton deep inelastic scattering and find consistency with the available experimental data. Furthermore, baryon production in pp collisions is suggested to be an ideal domain to check the predicted mass suppression.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INCLUSIVE PARTICLE-PRODUCTION; QUARK FRAGMENTATION FUNCTIONS; NEUTRAL STRANGE PARTICLES; TO-LEADING ORDER; DIQUARK MODEL; (LAMBDA)OVER-BAR POLARIZATION; E(+)E(-) ANNIHILATION; LAMBDA-POLARIZATION; PERTURBATION-THEORY; HYPERON PRODUCTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Aug 2021 05:43 |
| Last Modified: | 11 Aug 2021 05:43 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38980 |
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