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Proton-3H scattering calculation: Elastic and charge-exchange reactions up to 30 MeV

A. Deltuva and A. C. Fonseca
Phys. Rev. C 91, 034001 – Published 16 March 2015

Abstract

Proton-H3 elastic scattering and charge-exchange reaction H3(p,n)He3 in the energy regime above the four-nucleon breakup threshold are described in the momentum-space transition operator framework. Fully converged results are obtained by using realistic two-nucleon potentials and a two-proton Coulomb force as dynamic input. Differential cross section, proton analyzing power, outgoing neutron polarization, and proton-to-neutron polarization transfer coefficients are calculated between 6 and 30 MeV proton beam energy. Good agreement with the experimental data is found for the differential cross section both in elastic and charge-exchange reactions; the latter shows a complicated energy and angular dependence. The most sizable discrepancies between predictions and data are found for the proton analyzing power and outgoing neutron polarization in the charge-exchange reaction, while the respective proton-to-neutron polarization transfer coefficients are well described by the calculations.

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  • Received 25 January 2015

DOI:https://doi.org/10.1103/PhysRevC.91.034001

©2015 American Physical Society

Authors & Affiliations

A. Deltuva

  • Institute of Theoretical Physics and Astronomy, Vilnius University, A. Goštauto 12, LT-01108 Vilnius, Lithuania

A. C. Fonseca

  • Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal

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Issue

Vol. 91, Iss. 3 — March 2015

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