Abstract
Considering the effect of one-gluon-exchange interaction between quarks, the color-flavor locked strange quark matter and strange stars are investigated in a new quark mass density-dependent model. It is found that the color-flavor locked strange quark matter can be more stable if the one-gluon-exchange effect is included. The lower density behavior of the sound velocity in this model is different from the previous results. Moreover, the new equation of state leads to a heavier acceptable maximum mass, supporting the recent observation of a compact star mass as large as about 2 times the solar mass.
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