Analysis of Exotic Hybrid eta pion, eta-prime pion Decays

Details Analysis of Exotic Hybrid eta pion, eta-prime pion Decays Analysis of Exotic Hybrid eta pion, eta-prime pion Decays

2004-10-28

arxiv.org/abs/hep-ph/0410384v1

Int.J.Mod.Phys. A20 (2005) 1973-1976

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, talk presented at the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon(MENU2004

Scientific paper

10.1142/S0217751X05023761

Investigations of the mass and decays of the exotic hybrid are reviewed, including calculation of the pion1 to eta pion, eta-prime pion decay widths within the QCD sum rules technique. In this calculation, the recently-proposed eta, eta-prime quark mixing scheme is employed. The results indicate that the decay width Gamma(pion1 to eta pion) around 250 MeV is large compared with the decay width Gamma(pion1 to eta-prime pion) around 20 MeV. Inspired by these results, some phenomenological approaches are suggested to gain an understanding of the underlying mechanism of eta pion and eta-prime pion hybrid decays.

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