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Abstract
We discuss the stability of strangelets by considering dynamical chiral symmetry breaking and confinement. We use a $U(3{)}_{L}\ifmmode\times\else\texttimes\fi{}U(3{)}_{R}$ symmetric Nambu-Jona-Lasinio (NJL) model for chiral symmetry breaking supplemented by a boundary condition for confinement. It is shown that strangelets (finite number of strange quarks) with baryon number $A\ensuremath{\lesssim}{10}^{3}$ is the lowest quark droplets. For the observables, we obtain the masses and the charge-to-baryon number ratios of the strangelets. These quantities are compared with the observed data of the exotic particles.
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