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Duration and non-locality of a nucleon-nucleon collision

Klaus Morawetz·Pavel Lipavský·Václav Špička·Nai-Hang Kwong
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Abstract

For a set of realistic nucleon-nucleon potentials we evaluate microscopic parameters of binary collisions: a time duration of the scattering state, a mean distance and a rotation of nucleons during a collision. These parameters enter the kinetic equation as non-instantaneous and non-local corrections of the scattering integral, i.e., they can be experimentally tested. Being proportional to off-shell derivatives of the scattering T-matrix, non-instantaneous and non-local corrections make it possible to compare the off-shell behavior of different potentials in a vicinity of the energy shell. The Bonn one-Boson-exchange (A-C) and Paris potentials are found to yield very close results, while the separable Paris potential differs.

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Klaus Morawetz, Pavel Lipavský, Václav Špička, Nai-Hang Kwong. 1999-02-17. Duration and non-locality of a nucleon-nucleon collision. https://doi.org/10.1103/physrevc.59.3052

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