Hauser-Feshbach calculations in deformed nuclei

Grimes, S. M.

doi:10.1103/PhysRevC.88.024613

Hauser-Feshbach calculations in deformed nuclei

Journal Article · Thu Aug 22 00:00:00 EDT 2013 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.88.024613· OSTI ID:1245619

Grimes, S. M. ^[1]

Ohio Univ., Athens, OH (United States); Ohio University, Athens, Ohio (USA)

Hauser Feshbach calculations for deformed nuclei are typically done with level densities appropriate for deformed nuclei but with Hauser Feshbach codes which enforce spherical symmetry by not including K as a parameter in the decay sums. A code has been written which does allow the full K dependence to be included. Calculations with the code have been compared with those from a conventional Hauser Feshbach code. The evaporation portion (continuum) is only slightly affected by this change but the cross sections to individual (resolved) levels are changed substantially. It is found that cross sections to neighboring levels with the same J but differing K are not the same. The predicted consequences of K mixing will also be discussed.

View Accepted Manuscript (DOE)

Research Organization:: Ohio Univ., Athens, OH (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FG02-88ER40387

OSTI ID:: 1245619

Journal Information:: Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 2 Vol. 88; ISSN 0556-2813; ISSN PRVCAN

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (23)

Further explorations of the α -particle optical model potential at low energies for the mass range A ≈ 45 –209 Avrigeanu, V.; Avrigeanu, M.; Mănăilescu, C. Physical Review C, Vol. 90, Issue 4 https://doi.org/10.1103/PhysRevC.90.044612	journal	October 2014
New perspectives on the level density of compound resonances Rohr, G. Zeitschrift f�r Physik A Atoms and Nuclei, Vol. 318, Issue 3 https://doi.org/10.1007/BF01418087	journal	October 1984
Optical-model analysis of the scattering of 24.7 MeV alpha particles McFadden, Lynne; Satchler, G. R. Nuclear Physics, Vol. 84, Issue 1 https://doi.org/10.1016/0029-5582(66)90441-X	journal	August 1966
Comparison of neutron resonance spacings with microscopic theory for nuclei with static deformation Huizenga, J. R.; Behkami, A. N.; Atcher, R. W. Nuclear Physics A, Vol. 223, Issue 3 https://doi.org/10.1016/0375-9474(74)90708-8	journal	May 1974
Local and global nucleon optical models from 1 keV to 200 MeV Koning, A. J.; Delaroche, J. P. Nuclear Physics A, Vol. 713, Issue 3-4 https://doi.org/10.1016/S0375-9474(02)01321-0	journal	January 2003
Investigation of the Bohr-Independence Hypothesis for Nuclear Reactions in the Continuum: α + Co 59 , p + Ni 62 and α + Fe 56 , p + Cl 59 Fluss, M. J.; Miller, J. M.; D'Auria, J. M. Physical Review, Vol. 187, Issue 4 https://doi.org/10.1103/PhysRev.187.1449	journal	November 1969
Statistics and Nuclear Reactions Weisskopf, V. Physical Review, Vol. 52, Issue 4 https://doi.org/10.1103/PhysRev.52.295	journal	August 1937
On the Yield of Nuclear Reactions with Heavy Elements Weisskopf, V. F.; Ewing, D. H. Physical Review, Vol. 57, Issue 6 https://doi.org/10.1103/PhysRev.57.472	journal	March 1940
Conservation of Angular Momentum in the Statistical Theory of Nuclear Reactions Wolfenstein, L. Physical Review, Vol. 82, Issue 5 https://doi.org/10.1103/PhysRev.82.690	journal	June 1951
The Inelastic Scattering of Neutrons Hauser, Walter; Feshbach, Herman Physical Review, Vol. 87, Issue 2 https://doi.org/10.1103/PhysRev.87.366	journal	July 1952
Level density and spin cutoff parameters from continuum ( p , n ) and ( α , n ) spectra Grimes, S. M.; Anderson, J. D.; McClure, J. W. Physical Review C, Vol. 10, Issue 6 https://doi.org/10.1103/PhysRevC.10.2373	journal	December 1974
Isospin mixing in In 111 and the inclusion of additional terms in the mixing formalism Lux, C. R.; Porile, N. T.; Grimes, S. M. Physical Review C, Vol. 15, Issue 4 https://doi.org/10.1103/PhysRevC.15.1308	journal	April 1977
Anomalous optical potential for sub-Coulomb barrier protons Grimes, S. M. Physical Review C, Vol. 22, Issue 2 https://doi.org/10.1103/PhysRevC.22.436	journal	August 1980
Test of gamma-ray strength functions in nuclear reaction model calculations Kopecky, J.; Uhl, M. Physical Review C, Vol. 41, Issue 5 https://doi.org/10.1103/PhysRevC.41.1941	journal	May 1990
Effects of nuclear deformation on Eu 1 5 1 , 1 5 3 ( p , n ) 1 5 1 , 1 5 3 Gd reactions Lanier, R. G.; West, H. I.; Mustafa, M. G. Physical Review C, Vol. 42, Issue 2 https://doi.org/10.1103/PhysRevC.42.R479	journal	August 1990
Role of isospin in neutron- and alpha-induced reactions Grimes, S. M. Physical Review C, Vol. 46, Issue 3 https://doi.org/10.1103/PhysRevC.46.1064	journal	September 1992
Role of Isospin in Statistical Processes Grimes, S. M.; Anderson, J. D.; Kerman, A. K. Physical Review C, Vol. 5, Issue 1 https://doi.org/10.1103/PhysRevC.5.85	journal	January 1972
Distribution of compound-nucleus shapes and its influence on evaporation Charity, R. J. Physical Review C, Vol. 61, Issue 5 https://doi.org/10.1103/PhysRevC.61.054614	journal	April 2000
Level densities for 20 <~ A <~ 110 Al-Quraishi, S. I.; Grimes, S. M.; Massey, T. N. Physical Review C, Vol. 67, Issue 1 https://doi.org/10.1103/PhysRevC.67.015803	journal	January 2003
Search for the fade out of a collective enhancement of the nuclear level density Komarov, S.; Charity, R. J.; Chiara, C. J. Physical Review C, Vol. 75, Issue 6 https://doi.org/10.1103/PhysRevC.75.064611	journal	June 2007
Conditions for observation of fade out of collective enhancement of the nuclear level density Grimes, S. M. Physical Review C, Vol. 78, Issue 5 https://doi.org/10.1103/PhysRevC.78.057601	journal	November 2008
Calculation of nuclear reaction cross sections on excited nuclei with the coupled-channels method Kawano, T.; Talou, P.; Lynn, J. E. Physical Review C, Vol. 80, Issue 2 https://doi.org/10.1103/PhysRevC.80.024611	journal	August 2009
Target-state dependence of cross sections for reactions on statically deformed nuclei Dietrich, F. S.; Thompson, I. J.; Kawano, T. Physical Review C, Vol. 85, Issue 4 https://doi.org/10.1103/PhysRevC.85.044611	journal	April 2012

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Nuclear Level Density of Heavy Nuclei z≥90 Through Semiclassical Method Pahlavani, M. R.; Alavi, S. A.; Farhadi, E. Modern Physics Letters A, Vol. 29, Issue 03 https://doi.org/10.1142/s0217732314500175	journal	January 2014

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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Hauser-Feshbach calculations in deformed nuclei

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