Flavoured multiskyrmions

TL;DR

This paper calculates properties of multiskyrmions with baryon numbers up to 8 using rational map ansaetze and estimates spectra of baryonic systems with strangeness, charm, and bottom, suggesting potential explanations for observed nuclear fragments.

Contribution

It introduces calculations of multiskyrmion static properties and estimates spectra for baryonic systems with heavy flavors using a bound state soliton model.

Findings

Negatively charged nuclear fragments may be strange multiskyrmions with baryon number 6 or 7.

Baryonic systems with charm or bottom are more likely to be bound than strange systems.

The model supports the interpretation of certain nuclear fragments as quantized multiskyrmions.

Abstract

Static properties of multiskyrmions with baryon numbers up to 8 are calculated starting from recently given rational map ansaetze. The spectra of baryonic systems with strangeness, charm and bottom are estimated within a "rigid oscillator" version of the bound state soliton model. It is suggested that the recently observed negatively charged nuclear fragment can be considered as quantized strange multiskyrmion with baryon number 6 or 7 and large value of strangeness. In agreement with previous observation, it is argued that baryonic systems with charm or bottom quantum numbers have more chances to be bound with respect to strong interactions than strange baryonic systems.