Separation of two-body on-shell and off-shell dynamics in few-body systems

Details Separation of two-body on-shell and off-shell dynamics in few-body systems Separation of two-body on-shell and off-shell dynamics in few-body systems

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phlb..163..290o&link_type=abstract

Physics Letters B, Volume 163, Issue 5-6, p. 290-294.

Physics

3

Scientific paper

It is demonstrated by evaluation of trinucleon Faddeev equations and employing a new nucleon-nucleon force that two-body on-shell and off-shell dynamics can be separated unambiguously from each other in a few-body system. The two-body potential is constructed in such a way that while the off-shell effects are eliminated in a continuous process by decreasing the common off-shell parameter (force range) to zero, the on-shell behavior remains unaltered. For a realistic triton problem we find that the nucleon-nucleon on-shell contributions account for -1.15 MeV of the triton binding energy. A three-boson calculation for two-body low-energy phase shifts considered by Kuzmichev and Kharchenko, yields the same three-boson binding energy, as the prediction of their zero-range three-boson equation.
Present address: Bagatela 13 m 15, 00-585 Warsaw, Poland.

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