8m2c2 8m2 c2 1
where V = Vi+Vj, P = — iW is the total (nucleon pair) momentum operator, and [a, 6] = ab — ba. Putting the boost term into the nucleon Hamiltonian HN, one gets a new Hamiltonian H^ which includes all the terms quadratic in the nucleon velocities. However, parameters of the NNN interaction should be refitted to experimental binding energies of 3H and 4 He, and to nuclear matter data. Actually, only the IS part of the NNN interaction is modified by the presence of the boost interaction. The "boost-corrected" Vjjk turns out to be significantly weaker than Vjk. For example, the strength of the IS component of the UIX* is by ~40% smaller than the strength of the UIX NNN interaction (Akmal et al., 1998). Consequently, the introduction of the boost interaction reduces the contribution of repulsive many-body forces in the EOS at high densities.
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