Effect of the three-nucleon force on the three-nucleon ground state: Reducible and irreducible contributions

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.46.64· OSTI ID:7234911

Stadler, A; Sauer, P U ^[1]

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1. Institut fuer Theoretische Physik, Universitaet Hannover, D-3000 Hannover 1 (Germany) Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States)

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.

• DOE Contract Number: FG06-88ER40427
• OSTI ID: 7234911
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 46:1; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEON-NUCLEON INTERACTIONS
BINDING ENERGY
THREE-BODY PROBLEM
COUPLED CHANNEL THEORY
GROUND STATES
PIONS
TRITONS
BARYON-BARYON INTERACTIONS
BOSONS
CHARGED PARTICLES
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MANY-BODY PROBLEM
MESONS
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
663110* - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)
663510 - Nuclear Mass Ranges- A=1-5- (1992-)