Decay rates and electromagnetic transitions of heavy quarkonia

J. N. Pandya; N. R. Soni; N. Devlani; A. K. Rai

doi:10.1088/1674-1137/39/12/123101

Chinese Physics C> 2015, Vol. 39> Issue(12) : 123101 DOI: 10.1088/1674-1137/39/12/123101

Decay rates and electromagnetic transitions of heavy quarkonia

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Abstract：
The electromagnetic radiative transition widths for heavy quarkonia, as well as digamma and digluon decay widths, are computed in the framework of the extended harmonic confinement model (ERHM) and Coulomb plus power potential (CPP_v) with varying potential index v. The outcome is compared with the values obtained from other theoretical models and experimental results. While the mass spectra, digamma and digluon widths from ERHM as well as CPP_v=1 are in good agreement with experimental data, the electromagnetic transition widths span over a wide range for the potential models considered here making it difficult to prefer a particular model over the others because of the lack of experimental data for most transition widths.
- heavy quarkonia ,
- radiative decays ,
- electromagnetic transitions

References

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J. N. Pandya, N. R. Soni, N. Devlani and A. K. Rai. Decay rates and electromagnetic transitions of heavy quarkonia[J]. Chinese Physics C, 2015, 39(12): 123101. doi: 10.1088/1674-1137/39/12/123101

J. N. Pandya, N. R. Soni, N. Devlani and A. K. Rai. Decay rates and electromagnetic transitions of heavy quarkonia[J]. Chinese Physics C, 2015, 39(12): 123101. doi: 10.1088/1674-1137/39/12/123101 shu

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Received: 2014-12-23
Revised: 2015-06-26

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Supported by University Grants Commission, India for Major Research Project F. No.42-775/2013(SR) (J N Pandya) and Dept. of Science and Technology, India, under SERC fast track scheme SR/FTP/PS-152/2012 (A K Rai)

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Decay rates and electromagnetic transitions of heavy quarkonia

Corresponding author: J. N. Pandya,

Received Date: 2014-12-23

Accepted Date: 2015-06-26

Available Online: 2015-12-20

Fund Project: Supported by University Grants Commission, India for Major Research Project F. No.42-775/2013(SR) (J N Pandya) and Dept. of Science and Technology, India, under SERC fast track scheme SR/FTP/PS-152/2012 (A K Rai)

Abstract: The electromagnetic radiative transition widths for heavy quarkonia, as well as digamma and digluon decay widths, are computed in the framework of the extended harmonic confinement model (ERHM) and Coulomb plus power potential (CPP_v) with varying potential index v. The outcome is compared with the values obtained from other theoretical models and experimental results. While the mass spectra, digamma and digluon widths from ERHM as well as CPP_v=1 are in good agreement with experimental data, the electromagnetic transition widths span over a wide range for the potential models considered here making it difficult to prefer a particular model over the others because of the lack of experimental data for most transition widths.

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Decay rates and electromagnetic transitions of heavy quarkonia

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通讯作者: 陈斌, bchen63@163.com

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