Low-lying levels, γ-ray transitions, and vibrational structure in 198Pt from (n, n'γ) reaction spectroscopy

S. W. Yates; A. Khan; A. J. Filo; M. C. Mirzaa; J. L. Weil; M. T. McEllistrem

doi:10.1016/0375-9474(83)90374-3

Low-lying levels, γ-ray transitions, and vibrational structure in ¹⁹⁸Pt from (n, n'γ) reaction spectroscopy

S. W. Yates
, A. Khan
, A. J. Filo
, M. C. Mirzaa
, J. L. Weil
, M. T. McEllistrem

Chemistry

Producción científica: Article › revisión exhaustiva

15 Citas (Scopus)

Resumen

Low-lying states in ¹⁹⁸Pt have been studied by (n, n'γ) reaction spectroscopy at incident neutron energies below 2.5 MeV. Using detailed γ-ray excitation functions and angular distribution measurements, we have established a level scheme which includes 16 excited levels and is believed to include all levels below an excitation energy of 1.5 MeV. The positive-parity structure is similar to that expected for an anharmonic vibrator; however, difficulties in asserting that the first 0⁺ excited level is a collective excitation are encountered. Only two negative-parity states are observed, and they are adequately described in the semi-decoupled model.

Idioma original	English
Páginas (desde-hasta)	519-532
Número de páginas	14
Publicación	Nuclear Physics, Section A
Volumen	406
N.º	3
DOI	https://doi.org/10.1016/0375-9474(83)90374-3
Estado	Published - sept 26 1983

Nota bibliográfica

Funding Information:
We are grateful to R. Bijker, H. H. Bolotin, R. F. Casten, J. A. Cizewski, P. T. Deason, F. Iachello, I. Y. Lee, R. M. Ronningen, T. Tamura, K. J. Weeks and J. L. Wood for valuable discussions and communications. We acknowledge B. Perraut for his continuing contributions to our experiments and E. D. Kleppinger for his help with the data analysis. This work was partially supported by the US Department of Energy under Contract DE-AS05-79ER10365 and the National Science Foundation under Grant No. PHY-8105572.

Financiación

We are grateful to R. Bijker, H. H. Bolotin, R. F. Casten, J. A. Cizewski, P. T. Deason, F. Iachello, I. Y. Lee, R. M. Ronningen, T. Tamura, K. J. Weeks and J. L. Wood for valuable discussions and communications. We acknowledge B. Perraut for his continuing contributions to our experiments and E. D. Kleppinger for his help with the data analysis. This work was partially supported by the US Department of Energy under Contract DE-AS05-79ER10365 and the National Science Foundation under Grant No. PHY-8105572.

Financiadores	Número del financiador
US Department of Energy	DE-AS05-79ER10365
National Science Foundation (NSF)

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(83)90374-3

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title = "Low-lying levels, γ-ray transitions, and vibrational structure in 198Pt from (n, n'γ) reaction spectroscopy",

abstract = "Low-lying states in 198Pt have been studied by (n, n'γ) reaction spectroscopy at incident neutron energies below 2.5 MeV. Using detailed γ-ray excitation functions and angular distribution measurements, we have established a level scheme which includes 16 excited levels and is believed to include all levels below an excitation energy of 1.5 MeV. The positive-parity structure is similar to that expected for an anharmonic vibrator; however, difficulties in asserting that the first 0+ excited level is a collective excitation are encountered. Only two negative-parity states are observed, and they are adequately described in the semi-decoupled model.",

keywords = "Nuclear reactions",

author = "Yates, \{S. W.\} and A. Khan and Filo, \{A. J.\} and Mirzaa, \{M. C.\} and Weil, \{J. L.\} and McEllistrem, \{M. T.\}",

note = "Funding Information: We are grateful to R. Bijker, H. H. Bolotin, R. F. Casten, J. A. Cizewski, P. T. Deason, F. Iachello, I. Y. Lee, R. M. Ronningen, T. Tamura, K. J. Weeks and J. L. Wood for valuable discussions and communications. We acknowledge B. Perraut for his continuing contributions to our experiments and E. D. Kleppinger for his help with the data analysis. This work was partially supported by the US Department of Energy under Contract DE-AS05-79ER10365 and the National Science Foundation under Grant No. PHY-8105572.",

year = "1983",

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doi = "10.1016/0375-9474(83)90374-3",

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TY - JOUR

T1 - Low-lying levels, γ-ray transitions, and vibrational structure in 198Pt from (n, n'γ) reaction spectroscopy

AU - Yates, S. W.

AU - Khan, A.

AU - Filo, A. J.

AU - Mirzaa, M. C.

AU - Weil, J. L.

AU - McEllistrem, M. T.

N1 - Funding Information: We are grateful to R. Bijker, H. H. Bolotin, R. F. Casten, J. A. Cizewski, P. T. Deason, F. Iachello, I. Y. Lee, R. M. Ronningen, T. Tamura, K. J. Weeks and J. L. Wood for valuable discussions and communications. We acknowledge B. Perraut for his continuing contributions to our experiments and E. D. Kleppinger for his help with the data analysis. This work was partially supported by the US Department of Energy under Contract DE-AS05-79ER10365 and the National Science Foundation under Grant No. PHY-8105572.

PY - 1983/9/26

Y1 - 1983/9/26

N2 - Low-lying states in 198Pt have been studied by (n, n'γ) reaction spectroscopy at incident neutron energies below 2.5 MeV. Using detailed γ-ray excitation functions and angular distribution measurements, we have established a level scheme which includes 16 excited levels and is believed to include all levels below an excitation energy of 1.5 MeV. The positive-parity structure is similar to that expected for an anharmonic vibrator; however, difficulties in asserting that the first 0+ excited level is a collective excitation are encountered. Only two negative-parity states are observed, and they are adequately described in the semi-decoupled model.

AB - Low-lying states in 198Pt have been studied by (n, n'γ) reaction spectroscopy at incident neutron energies below 2.5 MeV. Using detailed γ-ray excitation functions and angular distribution measurements, we have established a level scheme which includes 16 excited levels and is believed to include all levels below an excitation energy of 1.5 MeV. The positive-parity structure is similar to that expected for an anharmonic vibrator; however, difficulties in asserting that the first 0+ excited level is a collective excitation are encountered. Only two negative-parity states are observed, and they are adequately described in the semi-decoupled model.

KW - Nuclear reactions

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