Low-Mass Baryon-Antibaryon Enhancements in B Decays

Details Low-Mass Baryon-Antibaryon Enhancements in B Decays Low-Mass Baryon-Antibaryon Enhancements in B Decays

2003-03-10

arxiv.org/abs/hep-ph/0303079v2

Phys.Rev.D68:014004,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, no figures, to be submitted to Phys. Rev. D. One reference added

Scientific paper

10.1103/PhysRevD.68.014004

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.

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