New Phase Space Calculations for β-Decay Half-Lives
Joint Authors
Mirea, Mihail
Niţescu, Ovidiu
Nabi, Jameel-Un
Ishfaq, Mavra
Stoica, Sabin
Source
Advances in High Energy Physics
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-31
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We revisit the computation of the phase space factors (PSF) involved in the positron decay and EC processes for a large number of nuclei of experimental interest.
To obtain the electron/positron wave functions, we develop a code for solving accurately the Dirac equation with a nuclear potential derived from a realistic proton density distribution in the nucleus.
The finite nuclear size (FNS) and screening effects are included through recipes which differ from those used in previous calculations.
Comparing our results with previous calculations, performed with the same Q-values, we find a close agreement for positron decays, while, for the EC process, there are relevant differences.
For the EC process, we also find that the screening effect has a notable influence on the computed PSF values especially for light nuclei.
Further, we recomputed the same PSF values but using the most recent Q-values reported in literature.
In several cases, the new Q-values differ significantly from the older ones, leading to large differences in the PSF values as compared with previous results.
Our new PSF values can contribute to more reliable calculations of the beta-decay rates, used in the study of nuclei far from the stability line and stellar evolution.
American Psychological Association (APA)
Stoica, Sabin& Mirea, Mihail& Niţescu, Ovidiu& Nabi, Jameel-Un& Ishfaq, Mavra. 2016. New Phase Space Calculations for β-Decay Half-Lives. Advances in High Energy Physics،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1095277
Modern Language Association (MLA)
Stoica, Sabin…[et al.]. New Phase Space Calculations for β-Decay Half-Lives. Advances in High Energy Physics No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1095277
American Medical Association (AMA)
Stoica, Sabin& Mirea, Mihail& Niţescu, Ovidiu& Nabi, Jameel-Un& Ishfaq, Mavra. New Phase Space Calculations for β-Decay Half-Lives. Advances in High Energy Physics. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1095277
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1095277