Suppression of the Coulomb interaction in the off-energy-shell p-p scattering from the p+d→p+p+n reaction

A. Tumino, C. Spitaleri, A. Mukhamedzhanov, G. G. Rapisarda, S. Cherubini, V. Crucillá, Z. Elekes, Z. Fülöp, M. Gulino, G. Gyürky, G. Kiss, M. La Cognata, L. Lamia, F. Mudó, R. G. Pizzone, S. Romano, M. L. Sergi, E. Somorjai

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Abstract

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.

Original languageEnglish
Article number252502
JournalPhysical review letters
Volume98
Issue number25
DOIs
Publication statusPublished - Jun 21 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Tumino, A., Spitaleri, C., Mukhamedzhanov, A., Rapisarda, G. G., Cherubini, S., Crucillá, V., Elekes, Z., Fülöp, Z., Gulino, M., Gyürky, G., Kiss, G., La Cognata, M., Lamia, L., Mudó, F., Pizzone, R. G., Romano, S., Sergi, M. L., & Somorjai, E. (2007). Suppression of the Coulomb interaction in the off-energy-shell p-p scattering from the p+d→p+p+n reaction. Physical review letters, 98(25), [252502]. https://doi.org/10.1103/PhysRevLett.98.252502