Effects of finite ground-state spin on fission fragment angular distributions following collisions with spherical or deformed nuclei

R. D. Butt; M. Dasgupta; I. Gontchar; D. J. Hinde; A. Mukherjee; A. C. Berriman; C. R. Morton; J. O. Newton; A. E. Stuchbery; J. P. Lestone

doi:10.1103/PhysRevC.65.044606

Effects of finite ground-state spin on fission fragment angular distributions following collisions with spherical or deformed nuclei

R. D. Butt^*, M. Dasgupta, I. Gontchar, D. J. Hinde, A. Mukherjee, A. C. Berriman, C. R. Morton, J. O. Newton, A. E. Stuchbery, J. P. Lestone

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The influence of the ground-state spin of fusing nuclei on the subsequent fission fragment angular distributions has been investigated through realistic quantum-mechanical calculations. The domain of applicability of an approximate formula is found for spherical nuclei. For deformed nuclei, a generalization of the standard transition state model expression for the fission fragment angular distribution is presented. This predicts dramatic changes in the shape and anisotropy of the distribution, for reactions of deformed nuclei with large ground-state spin.

Original language	English
Article number	044606
Pages (from-to)	446061-446068
Number of pages	8
Journal	Physical Review C - Nuclear Physics
Volume	65
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.65.044606
Publication status	Published - Apr 2002

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Butt, R. D., Dasgupta, M., Gontchar, I., Hinde, D. J., Mukherjee, A., Berriman, A. C., Morton, C. R., Newton, J. O., Stuchbery, A. E., & Lestone, J. P. (2002). Effects of finite ground-state spin on fission fragment angular distributions following collisions with spherical or deformed nuclei. Physical Review C - Nuclear Physics, 65(4), 446061-446068. Article 044606. https://doi.org/10.1103/PhysRevC.65.044606

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abstract = "The influence of the ground-state spin of fusing nuclei on the subsequent fission fragment angular distributions has been investigated through realistic quantum-mechanical calculations. The domain of applicability of an approximate formula is found for spherical nuclei. For deformed nuclei, a generalization of the standard transition state model expression for the fission fragment angular distribution is presented. This predicts dramatic changes in the shape and anisotropy of the distribution, for reactions of deformed nuclei with large ground-state spin.",

author = "Butt, {R. D.} and M. Dasgupta and I. Gontchar and Hinde, {D. J.} and A. Mukherjee and Berriman, {A. C.} and Morton, {C. R.} and Newton, {J. O.} and Stuchbery, {A. E.} and Lestone, {J. P.}",

year = "2002",

month = apr,

doi = "10.1103/PhysRevC.65.044606",

language = "English",

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pages = "446061--446068",

journal = "Physical Review C - Nuclear Physics",

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Butt, RD, Dasgupta, M, Gontchar, I, Hinde, DJ, Mukherjee, A, Berriman, AC, Morton, CR, Newton, JO, Stuchbery, AE & Lestone, JP 2002, 'Effects of finite ground-state spin on fission fragment angular distributions following collisions with spherical or deformed nuclei', Physical Review C - Nuclear Physics, vol. 65, no. 4, 044606, pp. 446061-446068. https://doi.org/10.1103/PhysRevC.65.044606

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AU - Butt, R. D.

AU - Dasgupta, M.

AU - Gontchar, I.

AU - Hinde, D. J.

AU - Mukherjee, A.

AU - Berriman, A. C.

AU - Morton, C. R.

AU - Newton, J. O.

AU - Stuchbery, A. E.

AU - Lestone, J. P.

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AB - The influence of the ground-state spin of fusing nuclei on the subsequent fission fragment angular distributions has been investigated through realistic quantum-mechanical calculations. The domain of applicability of an approximate formula is found for spherical nuclei. For deformed nuclei, a generalization of the standard transition state model expression for the fission fragment angular distribution is presented. This predicts dramatic changes in the shape and anisotropy of the distribution, for reactions of deformed nuclei with large ground-state spin.

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DO - 10.1103/PhysRevC.65.044606

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JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

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Effects of finite ground-state spin on fission fragment angular distributions following collisions with spherical or deformed nuclei

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