An alternative interpretation of Belle data on γ-γ-> η'-π^+-π^-

Abstract

Belle data on gamma-gamma -> eta'-pi-pi are refitted using a broad J^{PC}=0^(-+) signal peaking in the mass range 2250-2300 MeV, but without η(1760). There is the possibility that this broad 0^(-+) signal may be identified with the 0^(-+) glueball predicted originally by Morningstar and Peardon. The X(1835) is confirmed to have a resonant phase variation.

7 pages, 2 figures; 3 references added

References in corpus (5)

• Towards the glueball spectrum from unquenched lattice QCD
• Confirmation of the X(1835) and observation of the resonances X(2120) and X(2370) in J/psi->gamma pi^+pi^-eta'
• The puzzle of anomalously large isospin violations in $\eta (1405/1475)\to 3\pi$
• The mass of the sigma pole
• First study of η_c, η(1760) and X(1835) production via η'π^+π^- final states in two-photon collisions

Cited by in corpus (1)

• Decay of the pseudoscalar glueball into scalar and pseudoscalar mesons