Multibaryons with strangeness, charm and bottom

TL;DR

This paper calculates properties of multibaryons with strangeness, charm, and bottom using SU(2) rational map ansaetze and a variational SU(3) approach, revealing insights into their spectra and stability.

Contribution

It introduces a novel application of SU(2) rational map ansaetze combined with SU(3) variational minimization to study multibaryons with heavy flavors.

Findings

Multibaryons with charm and bottom are more likely to be stable than strange ones.

The flavor moment of inertia depends linearly on baryon number.

Calculated spectra suggest potential stable heavy-flavor baryonic states.

Abstract

Static properties of multiskyrmions with baryon numbers up to 8 are calculated, including momenta of inertia and sigma-term. The calculations are based on the recently suggested SU(2) rational map ansaetze. Minimization with the help of SU(3) variational minimization program shows that these configurations become local minima in SU(3) configuration space. The B-number dependence of the so called flavour moment of inertia of multiskyrmions playing an important role in the quantization procedure is close to the linear one. The spectra of baryonic systems with strangeness, charm and bottom are considered within a "rigid oscillator" version of the bound state soliton model. The binding energies estimates are made for the states with largest isospin which can appear as negatively charged nuclear fragments, as well as for states with zero isospin - light fragments of "flavoured" nuclear matter. Our results confirm the previously made observation that baryonic systems with charm or bottom quantum numbers have more chance to be stable with respect to strong interactions than strange baryonic systems.