THREE NUCLEON FORCES AND TRITON BINDING ENERGY - INSPIRE

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THREE NUCLEON FORCES AND TRITON BINDING ENERGY

1983

30 pages

Published in:

Nucl.Phys.A 393 (1983) 399-428

Published: 1983

DOI:

10.1016/0375-9474(83)90150-1

View in:

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Abstract: (Elsevier)

The effect of the three-nucleon forces on the triton binding energy ( E T ) is investigated. Two different types of three-nucleon potentials are considered, one involving 2π-exchange ( V ππ F ) and the other involving 2σ-exchange ( V SSF ) which is an approximation to 3π exchange. Both V ππ F and V SSF are constructed using the πN scattering amplitude extrapolated to off (pion) mass shell subject to PCAC. The contribution of V ππ F and V SSF to e t are calculated in the first-order perturbation using the triton wave function obtained by solving the Faddeev equations with the Reid soft-core potential. The Fujita-Miyazawa force is also investigated as a special case. We find that the effect of V ππ F on E T is sensitive to the assumed pionic form factor and is small due to cancellation between the πN s-d wave and p-wave contributions. The effect of V SSF is also found to be small.

TRITIUM: BINDING ENERGY
THREE-BODY PROBLEM
MODEL: POTENTIAL
EXCHANGE: TWO-PION
TWO-PION: EXCHANGE
EXCHANGE: (3PI)
(3PI): EXCHANGE
EXCHANGE: (2S*(980))
(2S*(980)): EXCHANGE
FEYNMAN GRAPH

References(53)

Figures(0)

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