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Strong population of a superdeformed band in Eu142

Mullins, S. M. ; Flibotte, S. ; Hackman, G. ; Rodriguez, J. L. ; Waddington, J. C. ; Afanasjev, A. V. ; Ragnarsson, I. LU ; Andrews, H. R. ; Galindo-Uribarri, A. and Janzen, V. P. , et al. (1995) In Physical Review C 52(1). p.99-103
Abstract

A superdeformed band has been found in Eu142. It is populated with 1.2(2)% of the total -ray intensity that decayed into Eu142 via the reaction Sn120(27Al,5n)142Eu at 152 MeV. The strength of the band is similar to that previously reported in Eu143, where the superdeformed band is populated with an intensity of 1.1(1)%. This is unexpected, since both total Routhian surface (TRS) and cranked modified oscillator (MO) calculations predict that the superdeformed band in Eu143 becomes yrast at lower spin than that in Eu142. This difference is 4Latin small letter h with stroke in the MO calculations and 8Latin small letter h with stroke in the TRS. Extrapolation of the normal-deformed yrast states in Eu143 shows, however, that a difference of... (More)

A superdeformed band has been found in Eu142. It is populated with 1.2(2)% of the total -ray intensity that decayed into Eu142 via the reaction Sn120(27Al,5n)142Eu at 152 MeV. The strength of the band is similar to that previously reported in Eu143, where the superdeformed band is populated with an intensity of 1.1(1)%. This is unexpected, since both total Routhian surface (TRS) and cranked modified oscillator (MO) calculations predict that the superdeformed band in Eu143 becomes yrast at lower spin than that in Eu142. This difference is 4Latin small letter h with stroke in the MO calculations and 8Latin small letter h with stroke in the TRS. Extrapolation of the normal-deformed yrast states in Eu143 shows, however, that a difference of 8Latin small letter h with stroke in spin corresponds to a change in the relative energy of the superdeformed and normal-deformed yrast lines of only 1 MeV.

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type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
52
issue
1
pages
5 pages
publisher
American Physical Society
external identifiers
  • scopus:0003068801
ISSN
0556-2813
DOI
10.1103/PhysRevC.52.99
language
English
LU publication?
yes
id
5a0a0203-7030-4610-a3bb-41016ddae565
date added to LUP
2023-12-11 11:59:43
date last changed
2023-12-11 11:59:43
@article{5a0a0203-7030-4610-a3bb-41016ddae565,
  abstract     = {{<p>A superdeformed band has been found in Eu142. It is populated with 1.2(2)% of the total -ray intensity that decayed into Eu142 via the reaction Sn120(27Al,5n)142Eu at 152 MeV. The strength of the band is similar to that previously reported in Eu143, where the superdeformed band is populated with an intensity of 1.1(1)%. This is unexpected, since both total Routhian surface (TRS) and cranked modified oscillator (MO) calculations predict that the superdeformed band in Eu143 becomes yrast at lower spin than that in Eu142. This difference is 4Latin small letter h with stroke in the MO calculations and 8Latin small letter h with stroke in the TRS. Extrapolation of the normal-deformed yrast states in Eu143 shows, however, that a difference of 8Latin small letter h with stroke in spin corresponds to a change in the relative energy of the superdeformed and normal-deformed yrast lines of only 1 MeV.</p>}},
  author       = {{Mullins, S. M. and Flibotte, S. and Hackman, G. and Rodriguez, J. L. and Waddington, J. C. and Afanasjev, A. V. and Ragnarsson, I. and Andrews, H. R. and Galindo-Uribarri, A. and Janzen, V. P. and Radford, D. C. and Ward, D. and Cromaz, M. and DeGraaf, J. and Drake, T. E. and Pilotte, S.}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{99--103}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Strong population of a superdeformed band in Eu142}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.52.99}},
  doi          = {{10.1103/PhysRevC.52.99}},
  volume       = {{52}},
  year         = {{1995}},
}