Scalar and Pseudoscalar Glueballs Revisited

Journal Article · Thu Aug 05 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3483375· OSTI ID:21426438

Haiyang, Cheng ^[1]

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1. Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (China) and Physics Department, Brookhaven National Laboratory, Upton, NY 11973 (United States)

Using two simple and robust inputs to constrain the mixing matrix of the isosinglet scalar mesons f{sub 0}(1710), f{sub 0}(1500), f{sub 0}(1370), we have shown that in the SU(3) symmetry limit, f{sub 0}(1500) becomes apure SU(3) octet and is degenerate with a{sub 0}(1450), while f{sub 0}(1370) is mainly an SU(3) singlet with a slight mixing with the scalar glueball which is the primary component of f{sub 0}(1710). These features remain essentially unchanged even when SU(3) breaking is taken into account. We have deduced the mass of the pseudoscalar glueball G from an {eta}-{eta}{sup '}-G mixing formalism based on the anomalous Ward identity for transition matrix elements. With the inputs from the recent KLOE experiment, we found a solution for the pseudoscalar glueball mass around (1.4{+-}0.1) GeV. This affirms that 77 (1405), having a large production rate in the radiative J/{Psi} decay and not seen in {gamma}{gamma} reactions, is indeed a leading candidate for the pseudoscalar glueball. It is much lower than the results from quenched lattice QCD (> 2.0 GeV).

• OSTI ID: 21426438
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1257; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

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F0-1730 MESONS
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SUPERSYMMETRY
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