Is there an isovector companion of the X(2175)?

Details Is there an isovector companion of the X(2175)? Is there an isovector companion of the X(2175)?

2009-02-07

arxiv.org/abs/0902.1211v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

revised version accepted in PLB

Scientific paper

In this letter we study the reaction e^{+}e^{-}\to\phi \pi^0 \eta with the \pi^{0}\eta system in an isoscalar s-wave configuration. We use a formalism recently developed for the study of e^{+}e^{-}\to\phi \pi\pi and e^{+}e^{-}\to\phi K^{+}K^{-}. The obtained cross section is within the reach of present e^{+}e^{-} machines. Measuring this channel would test the absence of an isovector companion of the X(2175) as predicted by the three body approach to this resonance.

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