Interpretation of experimentalexotic signals
- 28 October 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 58 (11) , 114012
- https://doi.org/10.1103/physrevd.58.114012
Abstract
We investigate theoretical interpretations of the 1.4 GeV exotic resonance reported by the E852 Collaboration. It is argued that interpretation in terms of a hybrid meson is untenable. A -matrix analysis shows that the 1.4 GeV enhancement in the E852 ηπ 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 ηπ width which is bounded above by 57±14 MeV.
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This publication has 30 references indexed in Scilit:
- Heavy hybrids from NRQCDNuclear Physics B - Proceedings Supplements, 1998
- Exotic ηπ state in p̄d annihilation at rest into π−π0ηpspectatorPhysics Letters B, 1998
- Implications of a JPC exoticPhysics Letters B, 1997
- Evidence for Exotic Meson Production in the Reaction atPhysical Review Letters, 1997
- Symmetrization selection rulesPhysics Letters B, 1997
- Hybrid and conventional mesons in the flux tube model: Numerical studies and their phenomenological implicationsPhysical Review D, 1995
- Selection rules for production and η-π decays of odd-CP exoticsPhysics Letters B, 1989
- Selection rule for 1−+ hybrid decay into ηπ from QCDPhysics Letters B, 1988
- Meson decays by flux-tube breakingPhysical Review D, 1987
- Flux-tube model for hadrons in QCDPhysical Review D, 1985