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Title: Damping mechanisms of high-lying single-particle states in {sup 91}Nb

Abstract

Decay by proton emission from high-lying states in {sup 91}Nb, populated in the {sup 90}Zr({alpha},t) reaction at E{sub {alpha}}=180 MeV, has been investigated. Decay to the ground state and semidirect decay to the low-lying (2{sup +},5{sup -}, and 3{sup -}) phonon states in {sup 90}Zr were observed. It was found that these phonon states play an important role in the damping process of the single-particle states. An optical-model coupled-channel approach was used successfully to describe the direct and semidirect parts of the decay.

Authors:
; ; ; ;  [1]; ; ; ; ; ; ; ;  [2];  [3];  [2];  [4]; ;  [5]; ;  [6] more »;  [1];  [7] « less
  1. Kernfysisch Versneller Instituut (KVI), University of Groningen, 9747 AA Groningen (Netherlands)
  2. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)
  3. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
  4. (Japan)
  5. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)
  6. Institut de Physique Nucleaire, IN2P3-CNRS, F-91406 Orsay Cedex (France)
  7. (Russian Federation) (and others)
Publication Date:
OSTI Identifier:
20990950
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.75.014311; (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; COUPLED CHANNEL THEORY; DAMPING; DECAY; GROUND STATES; MEV RANGE 100-1000; NIOBIUM 91; OPTICAL MODELS; PARTICLES; PHONONS; PROTONS; ZIRCONIUM 90

Citation Formats

Molen, H. K. T. van der, Berg, A. M. van den, Harakeh, M. N., Hunyadi, M., Kalantar-Nayestanaki, N., Akimune, H., Daito, I., Fujimura, H., Ihara, F., Inomata, T., Ishibashi, K., Yoshida, H., Yosoi, M., Fujita, Y., Fujiwara, M., Advanced Science Research Center, JAERI, Tokai, Ibaraki 319-1195, Jaenecke, J., O'Donnell, T. W., Laurent, H., Lhenry, I., Rodin, V. A., and Department of Theoretical Nuclear Physics, MEPI, RU-115409 Moscow. Damping mechanisms of high-lying single-particle states in {sup 91}Nb. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.014311.
Molen, H. K. T. van der, Berg, A. M. van den, Harakeh, M. N., Hunyadi, M., Kalantar-Nayestanaki, N., Akimune, H., Daito, I., Fujimura, H., Ihara, F., Inomata, T., Ishibashi, K., Yoshida, H., Yosoi, M., Fujita, Y., Fujiwara, M., Advanced Science Research Center, JAERI, Tokai, Ibaraki 319-1195, Jaenecke, J., O'Donnell, T. W., Laurent, H., Lhenry, I., Rodin, V. A., & Department of Theoretical Nuclear Physics, MEPI, RU-115409 Moscow. Damping mechanisms of high-lying single-particle states in {sup 91}Nb. United States. doi:10.1103/PHYSREVC.75.014311.
Molen, H. K. T. van der, Berg, A. M. van den, Harakeh, M. N., Hunyadi, M., Kalantar-Nayestanaki, N., Akimune, H., Daito, I., Fujimura, H., Ihara, F., Inomata, T., Ishibashi, K., Yoshida, H., Yosoi, M., Fujita, Y., Fujiwara, M., Advanced Science Research Center, JAERI, Tokai, Ibaraki 319-1195, Jaenecke, J., O'Donnell, T. W., Laurent, H., Lhenry, I., Rodin, V. A., and Department of Theoretical Nuclear Physics, MEPI, RU-115409 Moscow. Mon . "Damping mechanisms of high-lying single-particle states in {sup 91}Nb". United States. doi:10.1103/PHYSREVC.75.014311.
@article{osti_20990950,
title = {Damping mechanisms of high-lying single-particle states in {sup 91}Nb},
author = {Molen, H. K. T. van der and Berg, A. M. van den and Harakeh, M. N. and Hunyadi, M. and Kalantar-Nayestanaki, N. and Akimune, H. and Daito, I. and Fujimura, H. and Ihara, F. and Inomata, T. and Ishibashi, K. and Yoshida, H. and Yosoi, M. and Fujita, Y. and Fujiwara, M. and Advanced Science Research Center, JAERI, Tokai, Ibaraki 319-1195 and Jaenecke, J. and O'Donnell, T. W. and Laurent, H. and Lhenry, I. and Rodin, V. A. and Department of Theoretical Nuclear Physics, MEPI, RU-115409 Moscow},
abstractNote = {Decay by proton emission from high-lying states in {sup 91}Nb, populated in the {sup 90}Zr({alpha},t) reaction at E{sub {alpha}}=180 MeV, has been investigated. Decay to the ground state and semidirect decay to the low-lying (2{sup +},5{sup -}, and 3{sup -}) phonon states in {sup 90}Zr were observed. It was found that these phonon states play an important role in the damping process of the single-particle states. An optical-model coupled-channel approach was used successfully to describe the direct and semidirect parts of the decay.},
doi = {10.1103/PHYSREVC.75.014311},
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}
}