Spectroscopy of 98Cd by two-nucleon removal from 100In
(2021) In Physical Review C: covering nuclear physics 104(2).- Abstract
- Low-lying states of Cd-98 have been populated by the two-nucleon removal reaction (In-100, Cd-98+gamma) and studied using in-beam gamma-ray spectroscopy at the Radioactive Isotope Beam Factory at RIKEN. Two new gamma transitions were identified and assigned as decays from a previously unknown state. This state is suggested to be based on a pi 1g(/9/2)(-1)2p(1/2)(-2) configuration with J(pi) = 5(-). The present observation extends the systematics of the excitation energies of the first 5(-) state in N = 50 isotones toward Sn-100. The determined energy of the 5(- )state in Cd-98 continues a smooth trend along the N = 50 isotones. The systematics are compared with shell-model calculations in different model spaces. Good agreement is achieved... (More)
- Low-lying states of Cd-98 have been populated by the two-nucleon removal reaction (In-100, Cd-98+gamma) and studied using in-beam gamma-ray spectroscopy at the Radioactive Isotope Beam Factory at RIKEN. Two new gamma transitions were identified and assigned as decays from a previously unknown state. This state is suggested to be based on a pi 1g(/9/2)(-1)2p(1/2)(-2) configuration with J(pi) = 5(-). The present observation extends the systematics of the excitation energies of the first 5(-) state in N = 50 isotones toward Sn-100. The determined energy of the 5(- )state in Cd-98 continues a smooth trend along the N = 50 isotones. The systematics are compared with shell-model calculations in different model spaces. Good agreement is achieved when considering a model space consisting of the pi(1f(5/2), 2p(3/2), 2p(1/2), 1g(9/2)) orbitals. The calculations with a smaller model space omitting the orbitals below the Z = 38 subshell could not reproduce the experimental energy difference between the ground and first 5(-) states in N = 50 isotones, because proton excitations across Z = 38 subshell yield a large amount of correlation energy that lowers the ground states.
(Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3a290c36-f577-4f7e-81ba-84001e6f125c
- author
- Jin, S. Y.
; Wang, S. T.
; Lee, J.
; Corsi, A.
; Wimmer, K.
; Browne, F.
; Chen, S.
; Cortés, M. L.
; Doornenbal, P.
; Koiwa, T.
; Yuan, C. X.
; Algora, A.
; Brugnara, D.
; Cederkäll, Joakim
LU
; Gerl, J.
; Gorska, M.
; Häfner, G.
; Kokubun, K.
; Koseoglou, P.
; Kubono, S.
; Li, P.
; Liang, P
; Liu, J.
; Liu, Z.
; Lokotko, T.
; Park, J.
; Sakurai, H.
; Sun, Z. Y.
; Taniuchi, R.
; Xian, W.
; Zanon, I.
and Sarmiento Pico, Luis
LU
(Less) - organization
- publishing date
- 2021-08-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Level structure, Isotones, Isomer
- in
- Physical Review C: covering nuclear physics
- volume
- 104
- issue
- 2
- article number
- 024302
- pages
- 6 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:85112365538
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.104.024302
- language
- English
- LU publication?
- yes
- id
- 3a290c36-f577-4f7e-81ba-84001e6f125c
- date added to LUP
- 2021-08-30 16:32:58
- date last changed
- 2025-01-13 12:18:46
@article{3a290c36-f577-4f7e-81ba-84001e6f125c,
abstract = {{Low-lying states of Cd-98 have been populated by the two-nucleon removal reaction (In-100, Cd-98+gamma) and studied using in-beam gamma-ray spectroscopy at the Radioactive Isotope Beam Factory at RIKEN. Two new gamma transitions were identified and assigned as decays from a previously unknown state. This state is suggested to be based on a pi 1g(/9/2)(-1)2p(1/2)(-2) configuration with J(pi) = 5(-). The present observation extends the systematics of the excitation energies of the first 5(-) state in N = 50 isotones toward Sn-100. The determined energy of the 5(- )state in Cd-98 continues a smooth trend along the N = 50 isotones. The systematics are compared with shell-model calculations in different model spaces. Good agreement is achieved when considering a model space consisting of the pi(1f(5/2), 2p(3/2), 2p(1/2), 1g(9/2)) orbitals. The calculations with a smaller model space omitting the orbitals below the Z = 38 subshell could not reproduce the experimental energy difference between the ground and first 5(-) states in N = 50 isotones, because proton excitations across Z = 38 subshell yield a large amount of correlation energy that lowers the ground states.<br/>}},
author = {{Jin, S. Y. and Wang, S. T. and Lee, J. and Corsi, A. and Wimmer, K. and Browne, F. and Chen, S. and Cortés, M. L. and Doornenbal, P. and Koiwa, T. and Yuan, C. X. and Algora, A. and Brugnara, D. and Cederkäll, Joakim and Gerl, J. and Gorska, M. and Häfner, G. and Kokubun, K. and Koseoglou, P. and Kubono, S. and Li, P. and Liang, P and Liu, J. and Liu, Z. and Lokotko, T. and Park, J. and Sakurai, H. and Sun, Z. Y. and Taniuchi, R. and Xian, W. and Zanon, I. and Sarmiento Pico, Luis}},
issn = {{2469-9985}},
keywords = {{Level structure; Isotones; Isomer}},
language = {{eng}},
month = {{08}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review C: covering nuclear physics}},
title = {{Spectroscopy of <sup><i>98</i></sup>Cd by two-nucleon removal from <sup>100</sup>In}},
url = {{http://dx.doi.org/10.1103/PhysRevC.104.024302}},
doi = {{10.1103/PhysRevC.104.024302}},
volume = {{104}},
year = {{2021}},
}