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Band structures in Rh-99

Kumar, S. ; Singh, V. ; Singh, K. ; Sihotra, S. ; Singh, N. ; Goswamy, J. ; Malik, S. S. ; Ragnarsson, Ingemar LU ; Trivedi, T. and Singh, R. P. , et al. (2014) In Journal of Physics G: Nuclear and Particle Physics 41(10).
Abstract
Excited states in the Rh-99 nucleus were populated using the fusion-evaporation reaction As-75(Si-28,2p2n) at E-lab = 120 MeV and the de-excitations were investigated through in-beam gamma-ray spectroscopic techniques using the INGA spectrometer consisting of 18 clover detectors. The observed band structures are discussed in the framework of tilted axis cranking shell-model calculations. Level structures at low energies are identified as resulting from the rotational bands based on the pi p(1/2) and pi g(9/2) configurations. The Delta I = 1 coupled bands are observed at higher excitation energies and have been interpreted as based on the pi g(9/2) circle times nu g(7/2) circle times nu d(5/2), pi p(1/2) circle times nu h(11/2) circle times... (More)
Excited states in the Rh-99 nucleus were populated using the fusion-evaporation reaction As-75(Si-28,2p2n) at E-lab = 120 MeV and the de-excitations were investigated through in-beam gamma-ray spectroscopic techniques using the INGA spectrometer consisting of 18 clover detectors. The observed band structures are discussed in the framework of tilted axis cranking shell-model calculations. Level structures at low energies are identified as resulting from the rotational bands based on the pi p(1/2) and pi g(9/2) configurations. The Delta I = 1 coupled bands are observed at higher excitation energies and have been interpreted as based on the pi g(9/2) circle times nu g(7/2) circle times nu d(5/2), pi p(1/2) circle times nu h(11/2) circle times nu d(5/2) and pi g(9/2) circle times nu h(11/2) circle times nu g(7/2) configurations. Calculations based on cranked Nilsson- Strutinsky (CNS) formalism have been performed to interpret the favoured states with I-pi = (41/2(-), 43/2(-)) and (51/2(-), 53/2(-)) as maximal spin aligned states built on the valence space nu(d(5/2)g(7/2))(15/2)(3), (17/2)(h(11/2))(11/2)(1) configuration combined with the fully-aligned pi(g(9/2))(25/2)(5) configuration and the pi(g(9/2))(15/2)(5) configuration with one anti-aligned g(9/2) proton, respectively. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
gamma-gamma coincidence, fusion-evaporation reactions, tilted axis, cranking, CNS calculations
in
Journal of Physics G: Nuclear and Particle Physics
volume
41
issue
10
article number
105110
publisher
IOP Publishing
external identifiers
  • wos:000342356500018
  • scopus:84907202446
ISSN
0954-3899
DOI
10.1088/0954-3899/41/10/105110
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
e3f01b31-6ad9-4e95-9a34-e4039b2c2e12 (old id 4803791)
date added to LUP
2016-04-01 13:03:30
date last changed
2021-06-16 04:12:02
@article{e3f01b31-6ad9-4e95-9a34-e4039b2c2e12,
  abstract     = {Excited states in the Rh-99 nucleus were populated using the fusion-evaporation reaction As-75(Si-28,2p2n) at E-lab = 120 MeV and the de-excitations were investigated through in-beam gamma-ray spectroscopic techniques using the INGA spectrometer consisting of 18 clover detectors. The observed band structures are discussed in the framework of tilted axis cranking shell-model calculations. Level structures at low energies are identified as resulting from the rotational bands based on the pi p(1/2) and pi g(9/2) configurations. The Delta I = 1 coupled bands are observed at higher excitation energies and have been interpreted as based on the pi g(9/2) circle times nu g(7/2) circle times nu d(5/2), pi p(1/2) circle times nu h(11/2) circle times nu d(5/2) and pi g(9/2) circle times nu h(11/2) circle times nu g(7/2) configurations. Calculations based on cranked Nilsson- Strutinsky (CNS) formalism have been performed to interpret the favoured states with I-pi = (41/2(-), 43/2(-)) and (51/2(-), 53/2(-)) as maximal spin aligned states built on the valence space nu(d(5/2)g(7/2))(15/2)(3), (17/2)(h(11/2))(11/2)(1) configuration combined with the fully-aligned pi(g(9/2))(25/2)(5) configuration and the pi(g(9/2))(15/2)(5) configuration with one anti-aligned g(9/2) proton, respectively.},
  author       = {Kumar, S. and Singh, V. and Singh, K. and Sihotra, S. and Singh, N. and Goswamy, J. and Malik, S. S. and Ragnarsson, Ingemar and Trivedi, T. and Singh, R. P. and Muralithar, S. and Kumar, R. and Bhowmik, R. K. and Palit, R. and Bharti, A. and Mehta, D.},
  issn         = {0954-3899},
  language     = {eng},
  number       = {10},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics G: Nuclear and Particle Physics},
  title        = {Band structures in Rh-99},
  url          = {http://dx.doi.org/10.1088/0954-3899/41/10/105110},
  doi          = {10.1088/0954-3899/41/10/105110},
  volume       = {41},
  year         = {2014},
}