Proton and neutron polarization differences in the reactions H3(p,p)H3 and He3(n,n)He3

J. J. Bevelacqua
Phys. Rev. C 16, 1782 – Published 1 November 1977
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Abstract

The reactions H3(p,p)H3 and He3(n,n)He3 are analyzed within the framework of the dynamical R-matrix methodology. When compared at equal incident energies, measurements indicate that forward angle H3(p,p)H3 polarization values are slightly in excess of He3(n,n)He3 values. The model predicts the proton polarization has a slightly larger magnitude at forward angles than the neutron polarization, although their shapes and magnitudes are in qualitative agreement with experiment. Lisowski's phase shift analysis suggests the existence of a narrow resonance near Ex=37 MeV. The model predicts several resonances in the vicinity of this tentative level.

NUCLEAR REACTIONS Calculated P(θ) for H3(p,p) and He3(n,n) at 8.0, 12.0, and 17.1 MeV.

NUCLEAR STRUCTURE The R-matrix model predicts Jπ=1+, 2+, 3+, and 4+ states near the position of the tentative narrow resonance of Lisowski et al.

  • Received 7 April 1977

DOI:https://doi.org/10.1103/PhysRevC.16.1782

©1977 American Physical Society

Authors & Affiliations

J. J. Bevelacqua*

  • Department of Physics, The Florida State University, Tallahassee, Florida 32306

  • *Present address: Bettis Atomic Power Laboratory, Westinghouse Electric Corporation, P. O. Box 79, West Mifflin, Pennsylvania 15122. This work is based on studies initiated at The Florida State University and is related to the author's Ph.D. dissertation.

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Vol. 16, Iss. 5 — November 1977

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