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Titolo:
ON THE MECHANISM OF OPEN-FLAVOR STRONG DECAYS
Autore:
ACKLEH ES; BARNES T; SWANSON ES;
Indirizzi:
HEWLETT PACKARD CORP,SIT UNIX TEAM,20 PERIMETER SUMMIT BLVD,MS906-SE3ATLANTA GA 30319 OAK RIDGE NATL LAB,COMPUTAT & THEORET PHYS GRP OAK RIDGE TN 37831 UNIV TENNESSEE,DEPT PHYS & ASTRON KNOXVILLE TN 37996 N CAROLINA STATE UNIV,DEPT PHYS RALEIGH NC 27695
Titolo Testata:
Physical review. D. Particles and fields
fascicolo: 11, volume: 54, anno: 1996,
pagine: 6811 - 6829
SICI:
0556-2821(1996)54:11<6811:OTMOOS>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
PAIR-CREATION MODEL; RELATIVIZED QUARK-MODEL; FLUX-TUBE BREAKING; MESON DECAYS; CHARMONIUM; CHROMODYNAMICS; BARYONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
E.S. Ackleh et al., "ON THE MECHANISM OF OPEN-FLAVOR STRONG DECAYS", Physical review. D. Particles and fields, 54(11), 1996, pp. 6811-6829

Abstract

Open-flavor strong decays are mediated by <q(q)over bar> pair production, which is known to occur dominantly with P-3(0) quantum numbers. The relation of the phenomenological P-3(0) model of these decays to ''microscopic'' QCD decay mechanisms has never been established clearly. In this paper we investigate <q(q)over bar> meson decay amplitudes assuming pair production from the scalar confining interaction (sKs) andfrom one gluon exchange (OGE). sKs pair production predicts decay amplitudes of approximately the correct magnitude and DIS amplitude ratios in b(1) --> omega pi and a(1) --> rho pi which are close to experiment. The OGE decay amplitude is found to be subdominant in most cases, a notable exception being P-3(0) --> S-1(0) + S-1(0). The full sKs + OGE amplitudes differ significantly from P-3(0) model predictions in some channels and can be distinguished experimentally, for example, through an accurate comparison of the DIS amplitude ratios in b(1) --> omega pi and a(1) --> rho pi.

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Documento generato il 12/07/20 alle ore 05:37:56