Isoscalar resonances with J^{PC}=1^{--} in e^+e^-annihilation

Details Isoscalar resonances with J^{PC}=1^{--} in e^+e^-annihilation Isoscalar resonances with J^{PC}=1^{--} in e^+e^-annihilation

1997-03-24

arxiv.org/abs/hep-ph/9703397v2

Phys.Rev.D57:4334-4342,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, revtex, 6 ps figures. Clarifying remarks, a table, and references are added. Accepted in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.57.4334

The analysis of the vector isoscalar excitations in the energy range between 1 and 2 GeV of the $e^+e^-$ annihilation is presented for the final states $\pi^+\pi^-\pi^0$, $\omega\pi^+\pi^-$, $K^+K^-$, $K^0_SK^\pm\pi^\mp$ and $K^{\ast0}K^-\pi^++ c.c$. The effects of both the resonance mixing and the successive opening of multiparticle channels, with the energy dependent partial widths, are taken into account. The work extends our previous analysis hep-ph/9609216 of the vector isovector excitations and is aimed to compare the existing data with the predictions of the $q\bar q$ model. It is shown that this hypothesis does not contradict the data.

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