The X(3872) and the 3941 MeV peak in omega+J/Psi

Details The X(3872) and the 3941 MeV peak in omega+J/Psi The X(3872) and the 3941 MeV peak in omega+J/Psi

2004-10-12

arxiv.org/abs/hep-ph/0410168v5

Phys.Rev.D71:016006,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 3 figures Sign errors corrected in eqns. (4) and (16). Notation clarified in Secn. (4.5). Comments added onthe cours

Scientific paper

10.1103/PhysRevD.71.016006

Belle data for the pi-pi mass spectrum in X(3872) -> pi-pi + JPsi are well fitted by rho + J/Psi with JPC = 1++, but are poorly fitted by the pi-pi S-wave. Formulae for partial wave amplitudes are given for all likely JPC and decay modes of the 3941 MeV peak in omega + J/Psi. Angular correlations involving up to five angles may allow a spin-parity determination, even with quite low statistics. Special attention is given to the case where X(3872) is a cusp or quasi-bound state with the same quantum numbers as the 3941 MeV peak.

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