Lifetimes of high-spin states in theπi13/2band of173Re
| العنوان: | Lifetimes of high-spin states in theπi13/2band of173Re |
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| المؤلفون: | C. H. Yu, I. Y. Lee, M. J. Brinkman, Carl J Gross, Ragnar Bengtsson, H. Q. Jin, C. Baktash, A. O. Macchiavelli, W.T. Milner, F. K. McGowan, Jack C. Wells, Noah R. Johnson, Y. A. Akovali, D. M. Cullen |
| المصدر: | Physical Review C. 55:652-659 |
| بيانات النشر: | American Physical Society (APS), 1997. |
| سنة النشر: | 1997 |
| مصطلحات موضوعية: | Physics, Nuclear and High Energy Physics, Proton, Spin states, Quadrupole, Gammasphere, Fermi surface, Atomic physics, Type (model theory), Omega, Spin-½ |
| الوصف: | Lifetime measurements on the i{sub 13/2} band built on the proton configuration 1/2{sup +}[660] in {sup 173}Re have been carried out by the Doppler-broadened line shape method with the use of the GAMMASPHERE array in an early-implementation arrangement. Lifetimes of the stretched E2 transitions from states of spin 41/2{sup +}{endash}69/2{sup +} in this band were measured, and the transition quadrupole moments calculated from these lifetimes are consistent (average Q{sub t}=8.1{plus_minus}0.5eb) with a large and near-constant deformation ({beta}{sub 2}{approx}0.29) over the frequency range of {h_bar}{omega}=0.29{endash}0.47 MeV. This result attests to the strong deformation-driving effect of the intruder {pi}i{sub 13/2} orbital when it lies just above the Fermi surface. From thin-target measurements, it was possible to add three new levels to this band and to determine that the experimental aligned angular momenta gradually evolve over a large frequency range and level off with a total gain characteristic of alignment by i{sub 13/2} neutrons. Calculations carried out for diabatic configurations give a satisfactory accounting of the alignment gain. However, because of the large interaction between crossing bands, a more meaningful description of the deformation pattern in this band was achieved through calculations of the spin-adiabatic type. Both calculations are discussed and compared withmore » the experimental results. {copyright} {ital 1997} {ital The American Physical Society}« less |
| تدمد: | 1089-490X 0556-2813 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6e591ec992417169e1da70edfabd7d25 https://doi.org/10.1103/physrevc.55.652 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........6e591ec992417169e1da70edfabd7d25 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1089490X 05562813 |
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