DOI 10.1007/s100520000516
Multibaryons with strangeness, charm and bottom
V.B. Kopeliovich1,2 - W.J. Zakrzewski2
1 Institute for Nuclear Research of the Russian Academy of
Sciences, Moscow 117312, Russia
2 Department of Mathematical Sciences, University of Durham,
Durham DH1 3LE, UK
Received: 21 September 1999 / Revised version: 1 February 2000 /
Published online: 27 November 2000 - © Springer-Verlag
2000
Abstract
The spectra of baryonic systems with strangeness, charm and bottom
are
considered within a ``rigid oscillator'' version of the bound
state
soliton model. The static properties of multiskyrmions,
of baryon number up to B=8, are calculated using the recently
suggested
rational map ansaetze
as starting field configurations. The property of binding of
flavoured
mesons by an SU(2) skyrmion is proved rigorously within this
model. Binding energy estimates are made of the
states with largest isospin which can appear as negatively
charged nuclear fragments and for states with zero isospin -
fragments of
``flavoured'' nuclear matter. It is shown that for all types
of
flavour and for
the isoscalar
baryonic systems have a better chance to be stable against strong
and
electromagnetic interactions than those with nonzero
isospin. Baryonic systems with charm or bottom
quantum numbers are found to be bound more than strange baryonic
systems.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
