Pseudoscalar glueball mass from {eta}-{eta}{sup '}-G mixing
Journal Article
·
· Physical Review. D, Particles Fields
- Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (China)
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506 (United States)
We deduce 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 find a solution for the pseudoscalar glueball mass around (1.4{+-}0.1) GeV, which is fairly insensitive to a range of inputs with or without Okubo-Zweig-Iizuka-rule violating effects. This affirms that {eta}(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. Other relevant quantities including the anomaly and pseudoscalar density matrix elements are obtained. The decay widths for G{yields}{gamma}{gamma}, l{sup +}l{sup -} are also predicted.
- OSTI ID:
- 21254707
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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