Color plasma oscillation in strangelets

Details Color plasma oscillation in strangelets Color plasma oscillation in strangelets

1999-07-09

arxiv.org/abs/nucl-th/9907039v1

Phys.Rev. C60 (1999) 024905

Physics

Nuclear Physics

Nuclear Theory

9 pages (REVTeX), 2 Postscript figures, to be published in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.60.024905

The dispersion relation and damping rate of longitudinal color plasmons in finite strange quark matter (strangelets) are evaluated in the limits of weak coupling, low temperature, and long wavelength. The property of the QCD vacuum surrounding a strangelet makes the frequency of the plasmons nearly the same as the color plasma frequency of bulk matter. The plasmons are damped by their coupling with individual excitations of particle-hole pairs of quarks, of which the energy levels are discretized by the boundary. For strangelets of macroscopic size, the lifetime of the plasmons is found to be proportional to the size, as in the case of the usual plasma oscillations in metal nanoparticles.

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