Szczegóły publikacji
Opis bibliograficzny
Transverse and longitudinal Bose-Einstein correlations in hadronic $Z^{0}$ decays / G. Abbiendi [et al.], M. PRZYBYCIEŃ [et al.] // The European Physical Journal. C, Particles and Fields ; ISSN 1434-6044. — 2000 — vol. 16 iss. 3, s. 423–433. — Bibliogr. s. 433, Abstr. — Publikacja dostępna online od: 2000-06-08. — M. Przybycień - pierwsza afiliacja: CERN, European Organisation for Particle Physics, Geneva, Switzerland
Autorzy (313)
- AGHPrzybycień Mariusz
- Abbiendi Giovanni
Dane bibliometryczne
| ID BaDAP | 8677 |
|---|---|
| Data dodania do BaDAP | 2002-03-27 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s100520000407 |
| Rok publikacji | 2000 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | European Physical Journal, C |
Abstract
Bose-Einstein correlations in pairs of identical charged pions produced in a sample of 4.3 million Z(0) hadronic decays are studied as a function of the three components of the momentum difference, transverse ("out" and "side") and longitudinal with respect to the thrust direction of the event. A significant difference between the transverse. r(tside), and longitudinal, r(iota), dimensions is observed, indicating that the emitting source of identical pions, as observed in the Longitudinally CoMoving System, hs an elongated shape. This is observed with a variety of selection techniques. Specifically, the values of che parameters obtained by fitting the extended Goldhaber parametrisation to the correlation function C' = C-DATA/C-MC for two-jet events, selected with the Durham algorithm and resolution parameter y(cut) = 0.04, are r(tside) = (0.809 +/- 0.000 (stat)(-0.032)(+0.019) (syst)) fm, r(iota) = (0.989 +/- 0.011 (stat)(-0.015)(+0.030) (syst)) fm and r(iota)/r(tside) = 1.222 +/- 0.027 (stat)(-0.012)(+0.075) (syst). The results are discussed in the context of a recent model of Bose-Einstein correlations based on string fragmentation. The results of a unidimensional analysis are also presented.
