The "forbidden" decays of hybrid mesons to $πρ$ can be large

Details The "forbidden" decays of hybrid mesons to $πρ$ can be large The "forbidden" decays of hybrid mesons to $πρ$ can be large

2003-08-08

arxiv.org/abs/hep-ph/0308099v2

Phys.Rev.D70:094015,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

Replaced with revised version correcting a technical mistake, conclusions remain unchanged. Accepted for publication in PRD

Scientific paper

10.1103/PhysRevD.70.094015

The observation of $\pi_1(1600) \to \pi \rho$ is shown in the flux-tube model
to be compatible with this state being a hybrid meson with branching ratio to
this channel $\sim 30%$. The $\pi \rho$ widths of other hybrids are related by
rather general arguments. These results enable cross sections for
photoproduction of hybrids to be predicted.

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