RT Journal Article
T1 The BES f(0)(1810): a new glueball candidate
A1 Llanes Estrada, Felipe José
A1 Bicudo, P.
A1 Cotanch, S.R.
A1 Robertson, D.G
AB We analyze the f(0)(1810) state recently observed by the BES collaboration via radiative J/psi decay to a resonant phi omega spectrum and confront it with DM2 data and glueball theory. The DM2 group only measured omega omega decays and reported a pseudoscalar but no scalar resonance in this mass region. A rescattering mechanism from the open flavored K (K) over bar decay channel is considered to explain why the resonance is only seen in the flavor asymmetric omega phi branch along with a discussion of positive C-parity charmonia decays to strengthen the case for preferred open flavor glueball decays. We also calculate the total decay width of a glueball with this mass to be roughly 100 M (K) over bar eV, in agreement with the narrow, newly found f(0), and smaller than the expected estimate of 200-400 MeV. We conclude that this discovered scalar hadron deserves further experimental investigation, especially in the K channel, and if shown to be different from the f(0)(1710), will become a solid glueball candidate. Finally we comment on other, but less likely, possible assignments for this state.
PB Springer
SN 1434-6044
YR 2007
FD 2007-10
LK https://hdl.handle.net/20.500.14352/50792
UL https://hdl.handle.net/20.500.14352/50792
LA eng
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