Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/2027.42/24904
Title: Five-dimensional quasispin and the spectra of odd-parity yrast configurations in the Ba region
Authors: Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA;Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA;Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
Publisher: Elsevier
Description: The 5-dimensional quasispin formalism is used to evaluate the (n, T)-dependent factors of the matrix elements of abnormal parity operators of relevance for yrast-band spectroscopy. The formalism allows the leading pseudo-SU(3) representation of the normal (N) parity part of a shell-model configuration to be coupled to low-seniority states of the abnormal (A) parity high-j intruder part of the configuration. To illustrate the importance of the nA, TA dependence of the (A) to (N) space-coupling matrix elements this model is applied to the negative-parity yrast spectra of 127La and 127Ba, using hamiltonian parameters which give a reasonable fit for 126Ba. The 127La spectrum is reproduced with a seniority-one truncation of the h11/2 configuration; the 127Ba spectrum indicates a need for higher-seniority admixtures.
URI: https://deepblue.lib.umich.edu/handle/2027.42/24904
More Information: Weeks, K. J., Draayer, J. P., Hecht, K. T. (1984/02/13)."Five-dimensional quasispin and the spectra of odd-parity yrast configurations in the Ba region." Nuclear Physics A 414(1): 42-58. <http://hdl.handle.net/2027.42/24904>
http://www.sciencedirect.com/science/article/B6TVB-472PVFK-FX/2/fb50c76493c61c8142b158f577509864
http://hdl.handle.net/2027.42/24904
http://dx.doi.org/10.1016/0375-9474(84)90495-0
Nuclear Physics A
Appears in Collections:Research Collections

Files in This Item:
Click on the URI links for accessing contents.
Title: Five-dimensional quasispin and the spectra of odd-parity yrast configurations in the Ba region
Authors: Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA;Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA;Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
Publisher: Elsevier
Description: The 5-dimensional quasispin formalism is used to evaluate the (n, T)-dependent factors of the matrix elements of abnormal parity operators of relevance for yrast-band spectroscopy. The formalism allows the leading pseudo-SU(3) representation of the normal (N) parity part of a shell-model configuration to be coupled to low-seniority states of the abnormal (A) parity high-j intruder part of the configuration. To illustrate the importance of the nA, TA dependence of the (A) to (N) space-coupling matrix elements this model is applied to the negative-parity yrast spectra of 127La and 127Ba, using hamiltonian parameters which give a reasonable fit for 126Ba. The 127La spectrum is reproduced with a seniority-one truncation of the h11/2 configuration; the 127Ba spectrum indicates a need for higher-seniority admixtures.
URI: https://deepblue.lib.umich.edu/handle/2027.42/24904
More Information: Weeks, K. J., Draayer, J. P., Hecht, K. T. (1984/02/13)."Five-dimensional quasispin and the spectra of odd-parity yrast configurations in the Ba region." Nuclear Physics A 414(1): 42-58. <http://hdl.handle.net/2027.42/24904>
http://www.sciencedirect.com/science/article/B6TVB-472PVFK-FX/2/fb50c76493c61c8142b158f577509864
http://hdl.handle.net/2027.42/24904
http://dx.doi.org/10.1016/0375-9474(84)90495-0
Nuclear Physics A
Appears in Collections:Research Collections

Files in This Item:
Click on the URI links for accessing contents.
Title: Five-dimensional quasispin and the spectra of odd-parity yrast configurations in the Ba region
Authors: Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, USA;Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA;Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
Publisher: Elsevier
Description: The 5-dimensional quasispin formalism is used to evaluate the (n, T)-dependent factors of the matrix elements of abnormal parity operators of relevance for yrast-band spectroscopy. The formalism allows the leading pseudo-SU(3) representation of the normal (N) parity part of a shell-model configuration to be coupled to low-seniority states of the abnormal (A) parity high-j intruder part of the configuration. To illustrate the importance of the nA, TA dependence of the (A) to (N) space-coupling matrix elements this model is applied to the negative-parity yrast spectra of 127La and 127Ba, using hamiltonian parameters which give a reasonable fit for 126Ba. The 127La spectrum is reproduced with a seniority-one truncation of the h11/2 configuration; the 127Ba spectrum indicates a need for higher-seniority admixtures.
URI: https://deepblue.lib.umich.edu/handle/2027.42/24904
More Information: Weeks, K. J., Draayer, J. P., Hecht, K. T. (1984/02/13)."Five-dimensional quasispin and the spectra of odd-parity yrast configurations in the Ba region." Nuclear Physics A 414(1): 42-58. <http://hdl.handle.net/2027.42/24904>
http://www.sciencedirect.com/science/article/B6TVB-472PVFK-FX/2/fb50c76493c61c8142b158f577509864
http://hdl.handle.net/2027.42/24904
http://dx.doi.org/10.1016/0375-9474(84)90495-0
Nuclear Physics A
Appears in Collections:Research Collections

Files in This Item:
Click on the URI links for accessing contents.