Low-mass baryon-antibaryon enhancements inBdecays

7 July 2003

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 68 (1) , 014004
https://doi.org/10.1103/physrevd.68.014004

Abstract

The nature of low-mass baryon-antibaryon enhancements seen in B decays is explored. Three possibilities include (i) states near threshold as found in a model by Nambu and Jona-Lasinio, (ii) isoscalar states with

J^{PC} {= 0}^{\pm +}

coupled to a pair of gluons, and (iii) low-mass enhancements favored by the fragmentation process. Ways of distinguishing these mechanisms using angular distributions and flavor symmetry are proposed.

Keywords

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