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Interpretation of Experimental J^PC Exotic Signals

High Energy Physics - Phenomenology 2008-11-26 v1
Authors: Alexander Donnachie , Philip R. Page
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Abstract

We investigate theoretical interpretations of the 1.4 GeV J^PC exotic resonance reported by the E852 collaboration. It is argued that interpretation in terms of a hybrid meson is untenable. A K-matrix analysis shows that the 1.4 GeV enhancement in the E852 eta pi data can be understood as an interference of a non-resonant Deck-type background and a resonance at 1.6 GeV. A final state rescattering calculation shows that the 1.6 GeV hybrid has a eta pi width which is bounded above by 57 \pm 14 MeV.

Keywords

exotic mesons hybrid mesons K-matrix analysis E852 J^PC exotic signals

Cite

@article{arxiv.hep-ph/9808225,
  title  = {Interpretation of Experimental J^PC Exotic Signals},
  author = {Alexander Donnachie and Philip R. Page},
  journal= {arXiv preprint arXiv:hep-ph/9808225},
  year   = {2008}
}

Comments

23 pages, LaTeX, 4 encapsulated postscript figures. Accepted for publication by Physical Review D

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