Nuclear structure research. Annual progress report

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The most significant development this year has been the successful elucidation of the low-energy systematics of the very neutron-deficient Pr, Nd, Pm, and Sm isotopes. This includes an extensive set of Nilsson bandheads in {sup 133}Nd. Some serious errors in earlier decay scheme work were found. The results require some significant reassessments of mean-field calculations in this region. Part of our program continues to focus on shape coexistence and electric monopole (E0) transitions in nuclei. Following the discovery of coexisting ``gamma`` bands connected by E0 transitions in {sup 184}Pt, a similar behavior in {sup 186}Pt was established from {sup 186}Au ... continued below

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17 p.

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Wood, J. L. October 31, 1993.

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Description

The most significant development this year has been the successful elucidation of the low-energy systematics of the very neutron-deficient Pr, Nd, Pm, and Sm isotopes. This includes an extensive set of Nilsson bandheads in {sup 133}Nd. Some serious errors in earlier decay scheme work were found. The results require some significant reassessments of mean-field calculations in this region. Part of our program continues to focus on shape coexistence and electric monopole (E0) transitions in nuclei. Following the discovery of coexisting ``gamma`` bands connected by E0 transitions in {sup 184}Pt, a similar behavior in {sup 186}Pt was established from {sup 186}Au decay data. This includes a pure E0 transition between states with J{sup {pi}} = 3{sup +}, just as was seen in {sup 184}Pt. Progress has been made in elucidating the low-energy systematics of the neutron-deficient Ir isotopes. A search for the population of the superdeformed band in {sup 194}Pb in the decay of {sup 194}Bi was unsuccessful. An extensive program of systematics for nuclei at and near N = Z has been initiated.

Physical Description

17 p.

Notes

INIS; OSTI as DE94003293; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

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  • Other Information: PBD: 31 Oct 1993

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  • Other: DE94003293
  • Report No.: DOE/ER/40330--72
  • Grant Number: FG05-87ER40330
  • DOI: 10.2172/10105278 | External Link
  • Office of Scientific & Technical Information Report Number: 10105278
  • Archival Resource Key: ark:/67531/metadc1275687

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Office of Scientific & Technical Information Technical Reports

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  • October 31, 1993

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  • Oct. 12, 2018, 6:44 a.m.

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Wood, J. L. Nuclear structure research. Annual progress report, report, October 31, 1993; United States. (https://digital.library.unt.edu/ark:/67531/metadc1275687/: accessed March 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.