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The BES f(0)(1810): a new glueball candidate

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Llanes Estrada, Felipe José and Bicudo, P. and Cotanch, S.R. and Robertson, D.G (2007) The BES f(0)(1810): a new glueball candidate. European Physical Journal C, 52 (2). pp. 363-374. ISSN 1434-6044

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Official URL: http://dx.doi.org/10.1140/epjc/s10052-007-0377-5




Abstract

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.


Item Type:Article
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©Springer-Verlag / Società Italiana di Física 2007

Uncontrolled Keywords:Physics, Particles and Fields
Subjects:Sciences > Physics
ID Code:22946
Deposited On:01 Oct 2013 14:53
Last Modified:12 Feb 2015 08:45

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