Szczegóły publikacji
Opis bibliograficzny
Measurement of the quark and gluon fragmentation functions in $Z^{0}$ hadronic decays / P. Abreu [et al.], W. KUCEWICZ [et al.], B. MURYN [et al.] // The European Physical Journal. C, Particles and Fields ; ISSN 1434-6044. — 1999 — vol. 6 iss. 1, s. 19–33. — Bibliogr. s. 32–33, Abstr. — Publikacja dostępna online od: 1998-10-19. — B. Muryn - pierwsza afiliacja: Université de Grenoble, France
Autorzy (542)
- AGHKucewicz Wojciech
- AGHMuryn Bogdan
- Abreu Pedro F.
Dane bibliometryczne
| ID BaDAP | 737 |
|---|---|
| Data dodania do BaDAP | 2001-04-18 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s100520050319 |
| Rok publikacji | 1999 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | European Physical Journal, C |
Abstract
The transverse, longitudinal and asymmetric components of the fragmentation function are measured from the inclusive charged particles produced in e+e− collisions at LEP. As in deep inelastic scattering, these data are important for tests of QCD. The transverse σT and longitudinal σL components of the total hadronic cross section σtot are evaluated from the measured fragmentation functions. They are found to be σT/σtot=0.949±0.001(stat.)±0.007(syst.) and σL/σtot=0.051±0.001(stat.)±0.007(syst.) respectively. The strong coupling constant is calculated from σL/σtot in next-to-leading order of perturbative QCD, giving Including non-perturbative power corrections leads to The measured transverse and longitudinal components of the fragmentation function are used to estimate the mean charged multiplicity, The fragmentation functions and multiplicities in bb¯¯ and light quark events are compared. The measured transverse and longitudinal components of the fragmentation function allow the gluon fragmentation function to be evaluated.
