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Fast rotation of the N = Z nucleus 36Ar

Journal Article · · Acta Physica Polonica. Series B
OSTI ID:1407027
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  1. Univ. of Guelph, ON (Canada)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Lund Univ. (Sweden)
  4. Univ. of Madrid (Spain)
  5. McMaster Univ., Hamilton, ON (Canada)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. TRIUMF, Vancouver, BC (Canada)
  8. Univ. of Louis Pasteur, Strasbourg (France)
  9. Washington Univ., St. Louis, MO (United States)
  10. Argonne National Lab. (ANL), Argonne, IL (United States)
+ Show Author Affiliations
A highly-deformed rotational band has been identified in the N = Z nucleus 36Ar. At high spin the band is observed to its presumed termination at Iπ = 16+ , while at low spin it has been firmly linked to previously known states in 36Ar. Spins, parities, and absolute excitation energies have thus been determined throughout the band. Lifetime measurements establish a large low-spin quadrupole deformation (β2 = 0.46 ±0.03) and indicate a decreasing collectivity as the band termination is approached. With effectively complete spectroscopic information and a valence space large enough for significant collectivity to develop, yet small enough to be meaningfully approached from the shell model perspective, this rotational band in 36Ar provides many exciting opportunities to test and compare complementary models of collective motion in nuclei.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1407027
Journal Information:
Acta Physica Polonica. Series B, Journal Name: Acta Physica Polonica. Series B Vol. 32; ISSN 0587-4254
Publisher:
Jagiellonian UniversityCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS