Choudhury, R. K. ; Saxena, A. ; Chatterjee, A. ; Shetty, D. V. ; Kapoor, S. S. ; Cinausero, M. ; Corradi, L. ; Farnea, E. ; Fioretto, E. ; Gadea, A. ; Napoli, D. ; Prete, G. ; Stefanini, A. M. ; Bazzaco, D. ; Beghini, S. ; Fabris, D. ; Montagnoli, G. ; Nebbia, G. ; Rossi-Alvarez, C. ; Scarlassara, F. ; Ur, C. ; Viesti, G. (1999) Fragment spin as a function of the mass asymmetry in heavy ion induced fission reactions Physical Review C, 60 (5). 054609_1-054609_8. ISSN 0556-2813
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Official URL: http://prc.aps.org/abstract/PRC/v60/i5/e054609
Related URL: http://dx.doi.org/10.1103/PhysRevC.60.054609
Abstract
The total average spins of fission fragments were measured as a function of fragment mass in 12C, 16O+209Bi and 12C, 16O+232Th reactions at bombarding energies near and above the Coulomb barrier. The mass dependence of the fragment spin for the 12C, 16O+232Th reactions is observed to be in marked contrast to that for the 12C, 16O+209Bi reactions. The present results have been analyzed within the framework of the statistical model taking into account the finite relaxation times for the equilibration of the collective-spin modes. The observed features in 12C, 16O+232Th reactions can be ascribed to incomplete equilibration of the collective-spin modes where the mass relaxation at extreme mass asymmetries terminates before full statistical equilibration of the collective-spin modes is reached.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 16819 |
| Deposited On: | 15 Nov 2010 13:13 |
| Last Modified: | 04 Jun 2011 06:07 |
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