Three-Body-Cluster Effects on Lambda Single-Particle Energies in Lambda17O andLambda41Ca
S. Fujii, R. Okamoto, K. Suzuki
Abstract
A method for a microscopic description of Lambda hypernuclei is formulated in the framework of the unitary-model-operator approach. A unitarily transformed hamiltonian is introduced and given in a cluster expansion form. The structure of three-body-cluster terms are discussed especially on the Lambda single-particle energy. The Lambda single-particle energies including the three-body-cluster contributions are calculated for the 0s1/2, 0p3/2 and 0p1/2 states inLambda17O, and for the 0s1/2, 0p3/2, 0p1/2, 0d5/2, 0d3/2 and 1s1/2 states inLambda41Ca, using the Nijmegen soft-core (NSC), NSC97a-f, the Juelich A (J A) and J B hyperon-nucleon interactions. It is indicated that the three-body-cluster terms bring about sizable effects in the magnitudes of the Lambda single-particle energies, but hardly affect the Lambda spin-orbit splittings.
Create a lesson
Related papers
6He structure from semiclassical 3D models based on ab initio spatial correlations
Mengyao Huang, Tobias Frederico, Peng Yin et al.
Algebraic coefficients of fractional parentage for three particles in the oscillator Jacobi basis
A. Stepšys, S. Mickevičius, D. Germanas
Effective shear viscosity from the friction term in relativistic multi-fluid hydrodynamics
Christian Spieles, Marcus Bleicher
Four-dimensional QCD equation of state with a critical surface from contours of constant entropy density
Tristan Gyure, Hitansh Shah, Lorenzo Formaggio et al.
Prospects for modelling odd and odd-odd nuclei using energy density functionals
A. V. Afanasjev, B. Bally, M. Bender et al.
Fast Monte Carlo calculation of multiple scattering in resonant neutron capture
R. M. Djilkibaev