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Title: Spectroscopy of Gd 153 and Gd 157 using the ( p , d γ ) reaction

Abstract

Low-spin single quasineutron levels in 153Gd and 157Gd have been studied following the 154Gd(p,d-γ ) 153Gd and 158Gd(p,d-γ ) 157Gd reactions. A combined Si telescope and high-purity germanium array was utilized, allowing d-γ and d-γ-γ coincidence measurements. Almost all of the established low-excitation-energy, low-spin structures were confirmed in both 153Gd and 157Gd. Several new levels and numerous new rays are observed in both nuclei, particularly for E x ≥1 MeV. Lastly, residual effects of a neutron subshell closure at N = 64 are observed in the form of a large excitation energy gap in the single quasineutron level schemes.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5];  [6];  [6];  [6];  [6];  [5];  [5];  [4];  [5];  [5];  [5];  [6];  [6]
  1. Univ. of Richmond, Richmond, VA (United States); Univ. of Surrey, Guildford (United Kingdom); Univ. of Kentucky, Lexington, KY (United States)
  2. Univ. of Richmond, Richmond, VA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Univ. of California, Berkeley, CA (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1163182
Alternate Identifier(s):
OSTI ID: 1180282
Grant/Contract Number:  
AC05-00OR22725; NA0001801; FG02-05ER41379; W- 7405-Eng-48; AC52-07NA27344; AC02- 05CH11231; PHY-1305801; W-7405-Eng-48
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 90; Journal Issue: 4; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Ross, T. J., Hughes, R. O., Allmond, J. M., Beausang, C. W., Angell, C. T., Basunia, M. S., Bleuel, D. L., Burke, J. T., Casperson, R. J., Escher, J. E., Fallon, P., Hatarik, R., Munson, J., Paschalis, S., Petri, M., Phair, L. W., Ressler, J. J., and Scielzo, N. D. Spectroscopy of Gd153 and Gd157 using the (p,dγ) reaction. United States: N. p., 2014. Web. doi:10.1103/PhysRevC.90.044323.
Ross, T. J., Hughes, R. O., Allmond, J. M., Beausang, C. W., Angell, C. T., Basunia, M. S., Bleuel, D. L., Burke, J. T., Casperson, R. J., Escher, J. E., Fallon, P., Hatarik, R., Munson, J., Paschalis, S., Petri, M., Phair, L. W., Ressler, J. J., & Scielzo, N. D. Spectroscopy of Gd153 and Gd157 using the (p,dγ) reaction. United States. doi:10.1103/PhysRevC.90.044323.
Ross, T. J., Hughes, R. O., Allmond, J. M., Beausang, C. W., Angell, C. T., Basunia, M. S., Bleuel, D. L., Burke, J. T., Casperson, R. J., Escher, J. E., Fallon, P., Hatarik, R., Munson, J., Paschalis, S., Petri, M., Phair, L. W., Ressler, J. J., and Scielzo, N. D. Fri . "Spectroscopy of Gd153 and Gd157 using the (p,dγ) reaction". United States. doi:10.1103/PhysRevC.90.044323. https://www.osti.gov/servlets/purl/1163182.
@article{osti_1163182,
title = {Spectroscopy of Gd153 and Gd157 using the (p,dγ) reaction},
author = {Ross, T. J. and Hughes, R. O. and Allmond, J. M. and Beausang, C. W. and Angell, C. T. and Basunia, M. S. and Bleuel, D. L. and Burke, J. T. and Casperson, R. J. and Escher, J. E. and Fallon, P. and Hatarik, R. and Munson, J. and Paschalis, S. and Petri, M. and Phair, L. W. and Ressler, J. J. and Scielzo, N. D.},
abstractNote = {Low-spin single quasineutron levels in 153Gd and 157Gd have been studied following the 154Gd(p,d-γ )153Gd and 158Gd(p,d-γ )157Gd reactions. A combined Si telescope and high-purity germanium array was utilized, allowing d-γ and d-γ-γ coincidence measurements. Almost all of the established low-excitation-energy, low-spin structures were confirmed in both 153Gd and 157Gd. Several new levels and numerous new rays are observed in both nuclei, particularly for Ex ≥1 MeV. Lastly, residual effects of a neutron subshell closure at N = 64 are observed in the form of a large excitation energy gap in the single quasineutron level schemes.},
doi = {10.1103/PhysRevC.90.044323},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 90,
place = {United States},
year = {2014},
month = {10}
}

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