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Title: Fast rotation of the N = Z nucleus 36Ar

Abstract

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 I π = 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 (β 2 = 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.

Authors:
 [1];  [2];  [3];  [4];  [3];  [3];  [5];  [5];  [6];  [7];  [8];  [2];  [2];  [2];  [2];  [2];  [9];  [6];  [10];  [2] more »;  [2];  [6];  [8];  [6];  [6];  [9];  [10];  [2];  [9];  [2];  [2];  [6] « less
  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)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1407027
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Acta Physica Polonica. Series B
Additional Journal Information:
Journal Volume: 32; Journal ID: ISSN 0587-4254
Publisher:
Jagiellonian University
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Svensson, O. E., Macchiavelli, A. O., Juodagalvis, A., Poves, A., Ragnarsson, I., Åberg, S., Appelee, D. E., Austin, R. A. E., Baktash, C., Ball, G. G., Caurier, E., Clark, R. M., Cromaz, M., Deleplanque, M. A., Diamond, R. M., Fallon, P., Furlotti, M., Galindo-Uribarri, A., Janssens, R. V. F., Lane, G. J., Lee, I. Y., Lipoglavsek, M., Nowacki, F., Paul, S. D., Radford, D. C., Sarantites, D. G., Seweryniak, D., Stephens, F. S., Tomov, V., Vetter, K., Ward, D., and Yu, C. H. Fast rotation of the N = Z nucleus 36Ar. United States: N. p., 2001. Web.
Svensson, O. E., Macchiavelli, A. O., Juodagalvis, A., Poves, A., Ragnarsson, I., Åberg, S., Appelee, D. E., Austin, R. A. E., Baktash, C., Ball, G. G., Caurier, E., Clark, R. M., Cromaz, M., Deleplanque, M. A., Diamond, R. M., Fallon, P., Furlotti, M., Galindo-Uribarri, A., Janssens, R. V. F., Lane, G. J., Lee, I. Y., Lipoglavsek, M., Nowacki, F., Paul, S. D., Radford, D. C., Sarantites, D. G., Seweryniak, D., Stephens, F. S., Tomov, V., Vetter, K., Ward, D., & Yu, C. H. Fast rotation of the N = Z nucleus 36Ar. United States.
Svensson, O. E., Macchiavelli, A. O., Juodagalvis, A., Poves, A., Ragnarsson, I., Åberg, S., Appelee, D. E., Austin, R. A. E., Baktash, C., Ball, G. G., Caurier, E., Clark, R. M., Cromaz, M., Deleplanque, M. A., Diamond, R. M., Fallon, P., Furlotti, M., Galindo-Uribarri, A., Janssens, R. V. F., Lane, G. J., Lee, I. Y., Lipoglavsek, M., Nowacki, F., Paul, S. D., Radford, D. C., Sarantites, D. G., Seweryniak, D., Stephens, F. S., Tomov, V., Vetter, K., Ward, D., and Yu, C. H. Sat . "Fast rotation of the N = Z nucleus 36Ar". United States. https://www.osti.gov/servlets/purl/1407027.
@article{osti_1407027,
title = {Fast rotation of the N = Z nucleus 36Ar},
author = {Svensson, O. E. and Macchiavelli, A. O. and Juodagalvis, A. and Poves, A. and Ragnarsson, I. and Åberg, S. and Appelee, D. E. and Austin, R. A. E. and Baktash, C. and Ball, G. G. and Caurier, E. and Clark, R. M. and Cromaz, M. and Deleplanque, M. A. and Diamond, R. M. and Fallon, P. and Furlotti, M. and Galindo-Uribarri, A. and Janssens, R. V. F. and Lane, G. J. and Lee, I. Y. and Lipoglavsek, M. and Nowacki, F. and Paul, S. D. and Radford, D. C. and Sarantites, D. G. and Seweryniak, D. and Stephens, F. S. and Tomov, V. and Vetter, K. and Ward, D. and Yu, C. H.},
abstractNote = {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.},
doi = {},
journal = {Acta Physica Polonica. Series B},
number = ,
volume = 32,
place = {United States},
year = {2001},
month = {12}
}

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