CHARMED BARYONS WITH J

Authors
Citation
Jl. Rosner, CHARMED BARYONS WITH J, Physical review. D. Particles and fields, 52(11), 1995, pp. 6461-6465
Citations number
32
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
52
Issue
11
Year of publication
1995
Pages
6461 - 6465
Database
ISI
SICI code
0556-2821(1995)52:11<6461:CBWJ>2.0.ZU;2-F
Abstract
The width of a recently discovered excited charmed-strange baryon, a c andidate for a state Xi(c) with spin 3/2, is calculated. In the absen ce of configuration mixing between the ground-state (spin 1/2) charmed -strange baryon Xi(c)((a)) and the spin-1/2 state Xi(c)((s)) lying abo ut 95 MeV above it, one finds <(Gamma)over tilde>(Xi(c) --> Xi(c)((a) ) = 3/4<(Gamma)over tilde>(Xi --> Xi pi) and <(Gamma)over tilde>(Xi(c ) --> Xi(c)((s))pi) = 1/4<(Gamma)over tilde>(Xi* --> Xi pi), where th e tilde denotes the partial width with kinematic factors removed. Assu ming a kinematic factor for P-wave decay of p(c.m.)(3), one predicts G amma(Xi(c) --> Xi(c)((a))pi) = 2.3 MeV, while the Xi(c)* --> Xi(c)((s ))pi channel is closed. Some suggestions are given for detecting the S igma(c), the spin-3/2 charmed nonstrange baryon, and the Omega(c)*, t he spin-3/2 charmed doubly strange baryon.