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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13463
Title: Ab initio calculations of Gamow-Teller strengths in the sd shell
Authors: Saxena A.
Srivastava P.C.
Suzuki T.
Published in: Physical Review C
Abstract: In the present work we perform a systematic shell-model study of Gamow-Teller transition-strength distributions in sd shell nuclei using ab initio effective interactions. The ab initio effective interactions are based on in-medium similarity renormalization-group and coupled-cluster effective interaction approaches. The aim of the present work is to test the predictive power of ab initio effective interactions by using the available experimental data of Gamow-Teller strength distributions in sd shell nuclei. We perform calculations for Ne20→F20, Na23→Mg23, Na23→Ne23, Mg24→Na24, Mg24→Al24, Mg25→Al25, Mg26→Na26, Mg26→Al26, Si26→Al26, Al27→Si27, Si28→P28, P31→Si31, and S32→P32 transitions. For comparison we also show the results obtained by using the phenomenological USDB Hamiltonian. The phenomenological USDB results of the Gamow-Teller (GT+ and GT-) strength distributions show reasonable agreements with the experimental data in comparison with the ab initio interactions. We also calculate the electron-capture reaction rates for Na23(e-,ν)Ne23 and Mg25(e-,ν)Na25 using ab initio and USDB interactions. © 2018 American Physical Society.
Citation: Physical Review C (2018), 97(2): -
URI: https://doi.org/10.1103/PhysRevC.97.024310
http://repository.iitr.ac.in/handle/123456789/13463
Issue Date: 2018
Publisher: American Physical Society
ISSN: 24699985
Author Scopus IDs: 57209145804
57208202387
7409091140
Author Affiliations: Saxena, A., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Srivastava, P.C., Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Suzuki, T., Department of Physics, College of Humanities and Sciences, Nihon Univerity, Sakurajosui 3, Setagaya-ku, Tokyo, 156-8550, Japan, National Astronomical Observatory of Japan, Osawa 2, Mitaka, Tokyo, 181-8588, Japan
Funding Details: A.S. acknowledges financial support from MHRD (India) for her Ph.D. thesis work. P.C.S. would like to thank the faculty initiation grant for financial support. T.S. is grateful for support from the Grants-in-Aid for Scientific Research (JP15K05090) of the JSPS.
Corresponding Author: Srivastava, P.C.; Department of Physics, Indian Institute of Technology RoorkeeIndia; email: pcsrifph@iitr.ac.in
Appears in Collections:Journal Publications [PH]

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