Reworking the Tucson-Melbourne Three-Nucleon Potential |
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Authors: | S A Coon H K Han |
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Institution: | (1) Physics Department, New Mexico State University, Las Cruces, NM 88003, USA, US |
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Abstract: | We introduce new values of the strength constants (i.e., a, b, c, and d coefficients) of the Tucson-Melbourne (TM) 2π-exchange three-nucleon potential. The new values come from contemporary dispersion-relation
analyses of meson-factory πN-scattering data. We make variational Monte-Carlo calculations of the triton with the original and updated three-body forces
to study the effects of this update. We remove a short-range–π-range part of the potential due to the c coefficient and discuss the effect on the triton binding energy.
Received September 11, 1999; revised November 2, 1999; accepted February 23, |
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