Statistical Approach for Unpolarized Fragmentation Functions for the Octet Baryons
| Autor: | Claude Bourrely, Jacques Soffer |
|---|---|
| Přispěvatelé: | Centre de Physique Théorique - UMR 6207 (CPT), Université de la Méditerranée - Aix-Marseille 2-Université de Provence - Aix-Marseille 1-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique Théorique - UMR 7332 (CPT), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Bourrely, Claude, Centre National de la Recherche Scientifique (CNRS)-Université de Toulon (UTLN)-Université de Provence - Aix-Marseille 1-Université de la Méditerranée - Aix-Marseille 2 |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Nuclear and High Energy Physics
Particle physics Octet Nuclear Theory FOS: Physical sciences modele statistique Parton 01 natural sciences Nuclear physics High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences 010306 general physics Nuclear Experiment Physics Annihilation 010308 nuclear & particles physics High Energy Physics::Phenomenology Statistical model PACS 12.40.Ee 13.87.Fh 13.85.Ni 13.60.R Deep inelastic scattering [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Baryon High Energy Physics - Phenomenology [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] High Energy Physics::Experiment Nucleon fonctions de fragmentation Free parameter |
| Zdroj: | Physical Review D Physical Review D, 2003, 68, pp.014003-1-6 Physical Review D, American Physical Society, 2003, 68, pp.014003-1-6 |
| ISSN: | 1550-7998 1550-2368 |
| Popis: | A statistical model for the parton distributions in the nucleon has proven its efficiency in the analysis of deep inelastic scattering data, so we propose to extend this approach to the description of unpolarized fragmentation functions for the octet baryons. The characteristics of the model are determined by using some data on the inclusive production of proton and $\Lambda$ in unpolarized deep inelastic scattering and a next-to-leading analysis of the available experimental data on the production of unpolarized octet baryons in $e^+e^-$ annihilation. Our results show that both parton distributions and fragmentation functions are compatible with the statistical approach, in terms of a few free parameters, whose interpretation will be discussed. Comment: 14 pages, 7 eps figures, to appear in Phys. Rev. D |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|