Comparative study on α-decay of ground and isomeric states of Bi isotopes using improved semi-empirical relationship & modified GLDM

We have improved the SemFIS formula by Poenaru et al. (Phys Rev C 74: 014312, 2006), including the effect of angular momentum and a systematic study on alpha decay half-life of ground and isomeric states of 184−224 Bi ( Z = 83) is investigated. We further refined the modified SemFIS by Akrawy et al....

Full description

Saved in:
Bibliographic Details
Published inIndian journal of physics Vol. 99; no. 9; pp. 3445 - 3461
Main Authors Jose, Tinu Ann, Santhosh, K. P.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.08.2025
Springer Nature B.V
Subjects
Alpha decay
Angular momentum
Astrophysics and Astroparticles
Bismuth isotopes
Comparative studies
Drops (liquids)
Half-life
Original Paper
Physics
Physics and Astronomy
α-Radioactivity
Isomeric states
Semi-empirical formula
GLDM
Online AccessGet full text

Cover

More Information
Summary:We have improved the SemFIS formula by Poenaru et al. (Phys Rev C 74: 014312, 2006), including the effect of angular momentum and a systematic study on alpha decay half-life of ground and isomeric states of 184−224 Bi ( Z = 83) is investigated. We further refined the modified SemFIS by Akrawy et al. (Nucl Phys A 1021: 122419, 2022) eliminates its drawbacks in reproducing experimental data on bismuth isotopes, and the improved SemFIS models show higher accuracy in predicting alpha decay half-life. Also, alpha decay half-life is predicted using the Modified Generalized Liquid Drop Model (MGLDM), its improved version with new preformation parameters and other empirical formulas. Among all models, the New Geiger-Nuttall law demonstrates the lowest standard deviation. We hope our predictions will contribute to further experimental inquiries in this domain.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0973-1458
0974-9845
DOI:10.1007/s12648-025-03573-5