Phys. Rev. Lett. 98, 252502 (2007) [4 pages]Suppression of the Coulomb Interaction in the Off-Energy-Shell p-p Scattering from the p+d→p+p+n ReactionReceived 25 January 2007; published 21 June 2007 Off-energy-shell effects in p-p scattering have been investigated at p-p relative energies from 600 down to 80 keV applying the Trojan horse method (THM) to the p+d→p+p+n reaction at 5 MeV. In contrast with the on-energy-shell case, no Coulomb-nuclear interference minimum has been found in the extracted THM p-p cross section, due to the suppression of the Coulomb amplitude as predicted by the half-off-energy shell calculations. This hypothesis is strengthened by the agreement between THM p-p data and calculated on-energy-shell n+n, n+p and nuclear p+p cross sections. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.252502
DOI:
10.1103/PhysRevLett.98.252502
PACS:
24.50.+g, 21.10.Pc, 25.70.Hi, 26.20.+f
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