Screening in quark droplets

H. Heiselberg
Phys. Rev. D 48, 1418 – Published 1 August 1993
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Abstract

Finite systems of quark matter are found to have charge densities varying spatially on length scales of the order of the Debye screening length which is estimated to be ∼ 5 fm/c. Describing the quark matter by a simple bag model the charge densities and electrostatic potentials are calculated in the Thomas-Fermi approximation. The resulting relation between the total charge Z and the mass number A differs from previous work. Whereas small droplets of quark matter are almost uniformly charged, large droplets of quark matter act like a conductor and are only charged within a screening length from the surface. Including surface energies in addition to Coulomb energies, the binding energies of quark matter droplets are calculated and fission is found to be unlikely.

  • Received 22 February 1993

DOI:https://doi.org/10.1103/PhysRevD.48.1418

©1993 American Physical Society

Authors & Affiliations

H. Heiselberg

  • Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark and Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720

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Vol. 48, Iss. 3 — 1 August 1993

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