%0 Journal Article %T Mass formulae and strange quark matter %A G. X. Peng %A P. Z. Ning %J Physics %D 1997 %I arXiv %R 10.1103/PhysRevC.56.491 %X We have derived the popularly used parametrization formulae for quark masses at low densities and modified them at high densities within the mass-density-dependent model. The results are applied to investigate the lowest density for the possible existence of strange quark matter at zero temperature. %U http://arxiv.org/abs/hep-ph/9706291v2