skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Repulsive short range three-nucleon interaction

Abstract

The three nucleon interaction (TNI) that arises from pion and the effective scalar and vector meson exchange components of the nucleon-nucleon interaction is constructed. The dominant terms of this TNI involve an intermediate nucleon-antinucleon pair and can be thought of as a {pi} - {open_quotes}{sigma}{close_quotes} exchange and a {pi} - {open_quotes}{omega}{close_quotes} exchange TNI. Using several wavefunction models they show that this interaction reduces the calculated binding energy of the trinucleon in perturbation theory. Their most consistent combination of this short range TNI and a triton wavefunction both derived from the Bonn OBEPQ reduces the triton binding energy by about 200 KeV (roughly a factor of 4 smaller than that of the Tucson-Melbourne {pi} - {rho} TNI with the OBEPQ wavefunction). These results are qualitatively unchanged by the corresponding TNIs that arise from the excitation of N(1440) resonances on the intermediate nucleon. The totality of these TNIs provide an amount of additional repulsion that approximately corresponds to that of the repulsive spin-independent phenomenological TNI of short range postulated in some studies of light nuclei.

Authors:
; ;
Publication Date:
OSTI Identifier:
375038
Report Number(s):
CONF-9304297-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:004080-0430
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 40; Journal Issue: 2; Conference: 1993 joint meeting of the American Physical Society and the American Association of Physics Teachers, Washington, DC (United States), 12-15 Apr 1993; Other Information: PBD: Apr 1995
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; NUCLEON-NUCLEON INTERACTIONS; EXCHANGE INTERACTIONS; THREE-BODY PROBLEM; PIONS; VECTOR MESONS; SIGMA BARYONS

Citation Formats

Pena, M T, Riska, D O, and Coon, S A. Repulsive short range three-nucleon interaction. United States: N. p., 1995. Web.
Pena, M T, Riska, D O, & Coon, S A. Repulsive short range three-nucleon interaction. United States.
Pena, M T, Riska, D O, and Coon, S A. 1995. "Repulsive short range three-nucleon interaction". United States.
@article{osti_375038,
title = {Repulsive short range three-nucleon interaction},
author = {Pena, M T and Riska, D O and Coon, S A},
abstractNote = {The three nucleon interaction (TNI) that arises from pion and the effective scalar and vector meson exchange components of the nucleon-nucleon interaction is constructed. The dominant terms of this TNI involve an intermediate nucleon-antinucleon pair and can be thought of as a {pi} - {open_quotes}{sigma}{close_quotes} exchange and a {pi} - {open_quotes}{omega}{close_quotes} exchange TNI. Using several wavefunction models they show that this interaction reduces the calculated binding energy of the trinucleon in perturbation theory. Their most consistent combination of this short range TNI and a triton wavefunction both derived from the Bonn OBEPQ reduces the triton binding energy by about 200 KeV (roughly a factor of 4 smaller than that of the Tucson-Melbourne {pi} - {rho} TNI with the OBEPQ wavefunction). These results are qualitatively unchanged by the corresponding TNIs that arise from the excitation of N(1440) resonances on the intermediate nucleon. The totality of these TNIs provide an amount of additional repulsion that approximately corresponds to that of the repulsive spin-independent phenomenological TNI of short range postulated in some studies of light nuclei.},
doi = {},
url = {https://www.osti.gov/biblio/375038}, journal = {Bulletin of the American Physical Society},
number = 2,
volume = 40,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 1995},
month = {Sat Apr 01 00:00:00 EST 1995}
}