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Title: Smooth terminating bands in {sup 112}Te: Particle-hole induced collectivity

Abstract

The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in {sup 112}Te via {sup 58}Ni({sup 58}Ni, 4p{gamma}) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32({Dirac_h}/2{pi}) yield a transition quadrupole moment of 4.0{+-}0.5eb, which corresponds to a quadrupole deformation epsilon{sub 2}=0.26{+-}0.03; this value is significantly larger than the ground-state deformation of tellurium isotopes. It was also possible to extract a transition quadrupole moment for the yrast band in {sup 114}Xe, produced via the 58Ni (58Ni, 2p{gamma}) reaction. A value of 3.0{+-}0.5eb was found in the spin range 16-24({Dirac_h}/2{pi}), which corresponds to a quadrupole deformation epsilon{sub 2}=0.19{+-}0.03. Cranked Nilsson-Strutinsky calculations are used to interpret the results.

Authors:
; ; ; ; ;  [1]; ; ; ; ; ;  [2]; ; ;  [3];  [4]; ;  [5];  [6];  [7] more »;  [8];  [9];  [10] « less
  1. Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
  2. Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800 (United States)
  3. Department of Chemistry, Washington University, St. Louis, Missouri 63130 (United States)
  4. Schuster Laboratory, The University of Manchester, Brunswick Street, Manchester M13 9PL (United Kingdom)
  5. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  6. Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800, USA (United States)
  7. (United Kingdom)
  8. Department of Physics and Astronomy, Mississippi State University, Mississippi 39762, USA (United States)
  9. (Sweden)
  10. (Latvia) (and others)
Publication Date:
OSTI Identifier:
20990947
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.75.014308; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COLLECTIVE MODEL; DEFORMATION; DEFORMED NUCLEI; DOPPLER EFFECT; DSA METHOD; GROUND STATES; HEAVY ION REACTIONS; HIGH SPIN STATES; MASS NUMBER; MEV RANGE 100-1000; NICKEL 58; NUCLEAR ELECTRIC MOMENTS; QUADRUPOLE MOMENTS; QUADRUPOLES; SHELL MODELS; SPIN; TELLURIUM 112; XENON 114; YRAST STATES

Citation Formats

Paul, E. S., Evans, A. O., Boston, A. J., Chantler, H. J., Nolan, P. J., Semple, A. T., Starosta, K., Chiara, C. J., Fossan, D. B., Lane, G. J., Sears, J. M., Vaman, C., Devlin, M., LaFosse, D. R., Sarantites, D. G., Fletcher, A. M., Lee, I. Y., Macchiavelli, A. O., Smith, J. F., Schuster Laboratory, The University of Manchester, Brunswick Street, Manchester M13 9PL, Afanasjev, A. V., Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund, and Laboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Miera str. 31. Smooth terminating bands in {sup 112}Te: Particle-hole induced collectivity. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.014308.
Paul, E. S., Evans, A. O., Boston, A. J., Chantler, H. J., Nolan, P. J., Semple, A. T., Starosta, K., Chiara, C. J., Fossan, D. B., Lane, G. J., Sears, J. M., Vaman, C., Devlin, M., LaFosse, D. R., Sarantites, D. G., Fletcher, A. M., Lee, I. Y., Macchiavelli, A. O., Smith, J. F., Schuster Laboratory, The University of Manchester, Brunswick Street, Manchester M13 9PL, Afanasjev, A. V., Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund, & Laboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Miera str. 31. Smooth terminating bands in {sup 112}Te: Particle-hole induced collectivity. United States. doi:10.1103/PHYSREVC.75.014308.
Paul, E. S., Evans, A. O., Boston, A. J., Chantler, H. J., Nolan, P. J., Semple, A. T., Starosta, K., Chiara, C. J., Fossan, D. B., Lane, G. J., Sears, J. M., Vaman, C., Devlin, M., LaFosse, D. R., Sarantites, D. G., Fletcher, A. M., Lee, I. Y., Macchiavelli, A. O., Smith, J. F., Schuster Laboratory, The University of Manchester, Brunswick Street, Manchester M13 9PL, Afanasjev, A. V., Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund, and Laboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Miera str. 31. Mon . "Smooth terminating bands in {sup 112}Te: Particle-hole induced collectivity". United States. doi:10.1103/PHYSREVC.75.014308.
@article{osti_20990947,
title = {Smooth terminating bands in {sup 112}Te: Particle-hole induced collectivity},
author = {Paul, E. S. and Evans, A. O. and Boston, A. J. and Chantler, H. J. and Nolan, P. J. and Semple, A. T. and Starosta, K. and Chiara, C. J. and Fossan, D. B. and Lane, G. J. and Sears, J. M. and Vaman, C. and Devlin, M. and LaFosse, D. R. and Sarantites, D. G. and Fletcher, A. M. and Lee, I. Y. and Macchiavelli, A. O. and Smith, J. F. and Schuster Laboratory, The University of Manchester, Brunswick Street, Manchester M13 9PL and Afanasjev, A. V. and Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund and Laboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Miera str. 31},
abstractNote = {The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in {sup 112}Te via {sup 58}Ni({sup 58}Ni, 4p{gamma}) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32({Dirac_h}/2{pi}) yield a transition quadrupole moment of 4.0{+-}0.5eb, which corresponds to a quadrupole deformation epsilon{sub 2}=0.26{+-}0.03; this value is significantly larger than the ground-state deformation of tellurium isotopes. It was also possible to extract a transition quadrupole moment for the yrast band in {sup 114}Xe, produced via the 58Ni (58Ni, 2p{gamma}) reaction. A value of 3.0{+-}0.5eb was found in the spin range 16-24({Dirac_h}/2{pi}), which corresponds to a quadrupole deformation epsilon{sub 2}=0.19{+-}0.03. Cranked Nilsson-Strutinsky calculations are used to interpret the results.},
doi = {10.1103/PHYSREVC.75.014308},
journal = {Physical Review. C, Nuclear Physics},
number = 1,
volume = 75,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}