Exotic Levels from Topology in the Quantum-Chromodynamic Effective Lagrangian

Abstract

for helpful discussions and for his hospitality at Bell Laboratories, where this work was begun. The support of the National Science Foundation is also acknowledged.

Hyperfine splittings of strange baryons in the Skyrme model

“…After years of neglect, the Skyrme model [1] made a comeback in the 1980's [2,3] as a phenomenological low energy model of hadrons. In its simplest form, the Skyrme model is represented by a chiral lagrangian with the pseudoscalar mesons as the fundamental fields.…”

The Phase Transition of Half-Skyrmions in the Dense Nuclear Matter

“…In fact, we are able to establish a relationship between the value of R and the nuclear matter density. We will follow the nuclear matter density patterns of P.Hansen et al [10] and find the values of R corresponding to those patterns.…”

“…P.Haensel et al [10] have classified the states of the nuclear matter which are equivalent to the ones in neutron stars. Using Eq.…”

“…The parameter e must satisfy the Balachandran's bound [10] 1.57 < e < 4.17 (6) to be consistent. The spherically symmetric skyrmions are constructed from the hedge hog ansatz as follows…”

Simple description of strange dibaryons in the Skyrme model

“…One viable alternative to the quark models is the Skyrme model [3,4,5] where baryons are identified with solitons of the non-linear meson action, which is usually taken to be…”