Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium
Joint Authors
Negash, Hluf
Bhatnagar, Shashank
Source
Advances in High Energy Physics
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-20
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We study the radiative decay widths of vector quarkonia for the process of J/ψ(nS)→ηc(nS)γ and Υ(nS)→ηb(nS)γ (for principal quantum numbers n=1,2,3) in the framework of Bethe-Salpeter equation under the covariant instantaneous ansatz using a 4×4 form of BSE.
The parameters of the framework were determined by a fit to the mass spectrum of ground states of pseudoscalar and vector quarkonia, such as ηc, ηb, J/ψ, and Υ.
These input parameters so fixed were found to give good agreements with data on mass spectra of ground and excited states of pseudoscalar and vector quarkonia, leptonic decay constants of pseudoscalar and vector quarkonia, two-photon decays, and two-gluon decays of pseudoscalar quarkonia in our recent paper.
With these input parameters so fixed, the radiative decay widths of ground (1S) and excited (2S,3S) states of heavy vector quarkonia (J/Ψ and Υ) are calculated and found to be in reasonable agreement with data.
American Psychological Association (APA)
Negash, Hluf& Bhatnagar, Shashank. 2017. Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium. Advances in High Energy Physics،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1122158
Modern Language Association (MLA)
Negash, Hluf& Bhatnagar, Shashank. Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium. Advances in High Energy Physics No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1122158
American Medical Association (AMA)
Negash, Hluf& Bhatnagar, Shashank. Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium. Advances in High Energy Physics. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1122158
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122158