STUDY OF BARYON PRODUCTION MECHANISM IN E(-) ANNIHILATION INTO HADRONS()E()

Citation
M. Aoki et al., STUDY OF BARYON PRODUCTION MECHANISM IN E(-) ANNIHILATION INTO HADRONS()E(), Physics letters. Section B, 440(3-4), 1998, pp. 386-392
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ISSN journal
0370-2693
Volume
440
Issue
3-4
Year of publication
1998
Pages
386 - 392
Database
ISI
SICI code
0370-2693(1998)440:3-4<386:SOBPMI>2.0.ZU;2-D
Abstract
The mechanism of baryon-anti-baryon pair production in e(+)e(-) annihi lation into hadrons has been studied using the TOPAZ detector at the T RISTAN e(+)e(-) collider at an average center-of-mass energy of 58 GeV . The distributions of various (p) over bar p correlations were compar ed with two prominent models: the cluster-fragmentation model and the string-fragmentation model. We rejected the cluster-fragmentation mode l at the 90% C.L. Furthermore, in the context of the string-fragmentat ion model, we favor the ''popcorn'' model, rejecting the ''diquark'' m odel, where a diquark is considered to be a fundamental entity, at the 95% C.L. (C) 1998 Published by Elsevier Science B.V. All rights reser ved.