Coulomb suppression in the low-energy p-p elastic scattering via the Trojan Horse Method

Details Coulomb suppression in the low-energy p-p elastic scattering via the Trojan Horse Method Coulomb suppression in the low-energy p-p elastic scattering via the Trojan Horse Method

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1304..208t&link_type=abstract

EXOTIC NUCLEI AND NUCLEAR/PARTICLE ASTROPHYSICS (III): From Nuclei to Stars. AIP Conference Proceedings, Volume 1304, pp. 208-2

Astronomy and Astrophysics

Astrophysics

Electric Potential, Proton-Proton Scattering, Atomic Collisions, Coulomb Energies, Inelastic Neutron Scattering, Elastic And Inelastic Scattering

Scientific paper

We present here an important test of the main feature of the Trojan Horse Method (THM), namely the suppression of Coulomb effects in the entrance channel due to off-energy-shell effects. This is done by measuring the THM p-p elastic scattering via the p+d-->p+p+n reaction at 4.7 and 5 MeV, corresponding to a p-p relative energy ranging from 80 to 670 keV. In contrast to the on-energy-shell (OES) case, the extracted p-p cross section does not exhibit the Coulomb-nuclear interference minimum due to the suppression of the Coulomb amplitude. This is confirmed by the half-off-energy shell (HOES) calculations and strengthened by the agreement with the calculated OES nuclear cross sections.

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