Behera, Bivash R. ; Jena, S. ; Satpathy, M. ; Kailas, S. ; Mahata, K. ; Shrivastava, A. ; Chatterjee, A. ; Roy, Subinit ; Basu, P. ; Sharan, M. K. ; Datta, S. S. K. (2001) Entrance-channel effect in fission fragment anisotropies from 11B+235U and 14N+232Th systems Physical Review C, 64 (4). 041602(R)_1-041602(R)_3. ISSN 0556-2813
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Official URL: http://prc.aps.org/abstract/PRC/v64/i4/e041602
Related URL: http://dx.doi.org/10.1103/PhysRevC.64.041602
Abstract
Fission fragment angular distributions have been measured for 11B +235U and 14N +232Th, both leading to the same compound nucleus 246Bk and lying on either side of the Businaro-Gallone critical asymmetry parameter. At comparable excitation energies, even though <l2> of the compound nucleus for 14N +232Th are smaller than that of 11B +235U, the anisotropies measured for the former are found to be significantly larger than that from the latter. Further, while the measured anisotropies in the case of 11B +235U are found to be consistent with the statistical saddle-point model, the corresponding data for 14N+232Th are found to be "anomalous" indicating the presence of entrance channel dependent noncompound nuclear contributions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 85519 |
| Deposited On: | 03 Mar 2012 10:43 |
| Last Modified: | 03 Mar 2012 10:43 |
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