z-logo
open-access-imgOpen Access
Effect of the three-nucleon force on the three-nucleon ground state: Reducible and irreducible contributions
Author(s) -
Alfred Stadler,
P. U. Sauer
Publication year - 1992
Publication title -
physical review c
Language(s) - English
Resource type - Journals
eISSN - 1089-490X
pISSN - 0556-2813
DOI - 10.1103/physrevc.46.64
Subject(s) - ground state , physics , binding energy , nucleon , excitation , pion , cutoff , energy (signal processing) , irreducible representation , particle physics , nuclear force , nuclear physics , atomic physics , quantum mechanics
The Tucson-Melbourne two-pion exchange three-nucleon force is split into a reducible part mediated by {Delta} excitation and an irreducible part not mediated by {Delta} excitation. The triton binding energy is calculated. The irreducible part of the Tucson-Melbourne force is taken into account in the calculation. Its reducible part is discarded, but regenerated by the explicit treatment of the {Delta} isobar in a coupled-channel approach. The remaining irreducible part of the Tucson-Melbourne force makes a nonnegligible contribution to the triton binding energy. The strong dependence of the triton binding energy on the cutoff parameter for the {pi}{ital NN} vertex in the Tucson-Melbourne force is considerably reduced.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom