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Title: Three-body unitary transformations, three-body forces, and trinucleon bound state properties. [Charge form factor, Coulomb energy difference]

Journal Article · · Phys. Rev., C; (United States)

A three-body unitary transformation method for the study of three-body forces is presented. Starting with a three-body Hamiltonian with two-body forces, unitary transformations are introduced to generate Hamiltonians that have both two- and three-body forces. For cases of physical interest, the two-body forces of the altered Hamiltonians are phase equivalent (for two-body scattering) to the original and the three-body force vanishes when any interparticle distance is large. Specific examples are presented. Applications for studying the possible role of three-body forces in accounting for trinucleon bound state properties are examined. Calculations of the /sup 3/He and /sup 3/H charge form factors and Coulomb energy difference with hyperspherical radial transformations and with conventional N-N potentials are performed. The form factor calculations demonstrate how the proposed method can help obtain improved agreement with experiment by the introduction of appropriate three-body forces. Calculations of the Coulomb energy difference confirm previous estimates concerning charge symmetry breaking in the N-N interaction. (AIP)

Research Organization:
Naval Research Laboratory, Washington, D. C. 20375
OSTI ID:
7356162
Journal Information:
Phys. Rev., C; (United States), Vol. 14:2
Country of Publication:
United States
Language:
English