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

نویسندگان

  • 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
چکیده

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.

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عنوان ژورنال:
  • Physical review letters

دوره 98 25  شماره 

صفحات  -

تاریخ انتشار 2007