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Title: Multistep direct mechanism in the (p-vector,{sup 3}He) inclusive reaction on {sup 59}Co and {sup 93}Nb at incident energies between 100 and 160 MeV

Abstract

Emission-energy distributions for cross sections as well as analyzing powers were investigated for (p-vector,{sup 3}He) reactions on {sup 59}Co and {sup 93}Nb to the continuum from a threshold of {approx}40 MeV up to the kinematic limit at incident energies of 130 and 160 MeV. A range of scattering angles from 15 degree sign to 140 deg. (laboratory) was explored. The experimental distributions were compared with a multistep direct theory in which a reaction mechanism based on deuteron pickup is employed. Reasonable agreement between experimental double differential cross sections and analyzing powers and the theoretical expectation was obtained. This work, together with published results for the same reaction and targets at a lower projectile energy of 100 MeV, allowed the incident-energy dependence of the cross section and analyzing power distributions to be explored.

Authors:
 [1];  [2]; ; ; ; ;  [1];  [3];  [4]; ; ; ;  [5]
  1. Department of Physics, University of Stellenbosch, Private Bag X1, Matieland 7602 (South Africa)
  2. (South Africa)
  3. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784 Sofia (Bulgaria)
  4. Particle Physics Laboratory, Department of Physics, University of Oxford, Oxford OXI 3RH (United Kingdom)
  5. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, Somerset West 7129 (South Africa)
Publication Date:
OSTI Identifier:
20995303
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.75.054617; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COBALT 59; DEUTERONS; DIFFERENTIAL CROSS SECTIONS; ENERGY SPECTRA; HELIUM 3; MEV RANGE 100-1000; NIOBIUM 93; POLARIZATION-ASYMMETRY RATIO; REACTION KINETICS

Citation Formats

Cowley, A. A., iThemba Laboratory for Accelerator Based Sciences, PO Box 722, Somerset West 7129, Bezuidenhout, J., Hillhouse, G. C., Jacobs, N. M., Stander, J. A., Zyl, J. J. van, Dimitrova, S. S., Hodgson, P. E., Foertsch, S. V., Neveling, R., Smit, F. D., and Steyn, G. F. Multistep direct mechanism in the (p-vector,{sup 3}He) inclusive reaction on {sup 59}Co and {sup 93}Nb at incident energies between 100 and 160 MeV. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.054617.
Cowley, A. A., iThemba Laboratory for Accelerator Based Sciences, PO Box 722, Somerset West 7129, Bezuidenhout, J., Hillhouse, G. C., Jacobs, N. M., Stander, J. A., Zyl, J. J. van, Dimitrova, S. S., Hodgson, P. E., Foertsch, S. V., Neveling, R., Smit, F. D., & Steyn, G. F. Multistep direct mechanism in the (p-vector,{sup 3}He) inclusive reaction on {sup 59}Co and {sup 93}Nb at incident energies between 100 and 160 MeV. United States. doi:10.1103/PHYSREVC.75.054617.
Cowley, A. A., iThemba Laboratory for Accelerator Based Sciences, PO Box 722, Somerset West 7129, Bezuidenhout, J., Hillhouse, G. C., Jacobs, N. M., Stander, J. A., Zyl, J. J. van, Dimitrova, S. S., Hodgson, P. E., Foertsch, S. V., Neveling, R., Smit, F. D., and Steyn, G. F. Tue . "Multistep direct mechanism in the (p-vector,{sup 3}He) inclusive reaction on {sup 59}Co and {sup 93}Nb at incident energies between 100 and 160 MeV". United States. doi:10.1103/PHYSREVC.75.054617.
@article{osti_20995303,
title = {Multistep direct mechanism in the (p-vector,{sup 3}He) inclusive reaction on {sup 59}Co and {sup 93}Nb at incident energies between 100 and 160 MeV},
author = {Cowley, A. A. and iThemba Laboratory for Accelerator Based Sciences, PO Box 722, Somerset West 7129 and Bezuidenhout, J. and Hillhouse, G. C. and Jacobs, N. M. and Stander, J. A. and Zyl, J. J. van and Dimitrova, S. S. and Hodgson, P. E. and Foertsch, S. V. and Neveling, R. and Smit, F. D. and Steyn, G. F.},
abstractNote = {Emission-energy distributions for cross sections as well as analyzing powers were investigated for (p-vector,{sup 3}He) reactions on {sup 59}Co and {sup 93}Nb to the continuum from a threshold of {approx}40 MeV up to the kinematic limit at incident energies of 130 and 160 MeV. A range of scattering angles from 15 degree sign to 140 deg. (laboratory) was explored. The experimental distributions were compared with a multistep direct theory in which a reaction mechanism based on deuteron pickup is employed. Reasonable agreement between experimental double differential cross sections and analyzing powers and the theoretical expectation was obtained. This work, together with published results for the same reaction and targets at a lower projectile energy of 100 MeV, allowed the incident-energy dependence of the cross section and analyzing power distributions to be explored.},
doi = {10.1103/PHYSREVC.75.054617},
journal = {Physical Review. C, Nuclear Physics},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}