Repulsive short-range three-nucleon interaction

Repulsive short-range three-nucleon interaction.

The three nucleon interaction that arises from pion and the effective scalar and vector meson exchange components of the nucleon-nucleon interaction is constructed and shown to be repulsive. Using several wavefunction models we show that this interaction reduces the calculated binding energy of the trinucleons by about 200 keV. The contributions of intermediate N(1440) resonances to this three ...

Universality of short-range nucleon-nucleon correlations

In nuclei, the nuclear interaction induces strong shortrange correlations among the nucleons. Realistic nucleonnucleon interactions, which reproduce the nucleon-nucleon scattering phase-shifts and deuteron properties, contain short-range repulsive and tensor components. Due to the short-range repulsion, nucleon pairs will not be found at distances below 0.5 fm. This is reflected by a high momen...

The new mechanism for intermediate- and short-range nucleon-nucleon interaction

Some strong arguments against the traditional Yukawa-type approach to NN intermediateand short-range interaction due to scalar-isoscalar meson exchange are presented. Instead of the Yukawa mechanism for intermediaterange attraction some new approach based on formation of the symmetric six-quark bag in the state |(0s)[6]x, L = 0〉 dressed due to strong coupling to π, σ and ρ fields are suggested....

Subleading contributions to the chiral three-nucleon force. II. Short-range terms and relativistic corrections

V. Bernard,1,* E. Epelbaum,2,† H. Krebs,2,‡ and Ulf-G. Meißner3,4,§ 1Institut de Physique Nucléaire, CNRS/Univ. Paris-Sud 11, (UMR 8608), F-91406 Orsay Cedex, France 2Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany 3Universität Bonn, Helmholtz-Institut für Strahlenund Kernphysik (Theorie) and Bethe Center for Theoretical Physics, D-53115 Bonn, Germany 4Fors...

Comment on "measurement of two- and three-nucleon short-range correlation probabilities in nuclei".