Bulk viscosity of strange quark matter

Urca versus nonleptonic processes

Basil A. Sa'd, Igor Shovkovy, Dirk H. Rischke

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A general formalism for calculating the bulk viscosity of strange quark matter is developed. Contrary to the common belief that the nonleptonic processes alone give the dominant contribution to the bulk viscosity, the inclusion of the Urca processes is shown to play an important role at intermediate densities when the characteristic r-mode oscillation frequencies are not too high. The interplay of nonleptonic and Urca processes is analyzed in detail.

Original languageEnglish (US)
Article number125004
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number12
DOIs
StatePublished - Jun 4 2007
Externally publishedYes

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Bulk Viscosity
Quarks
quarks
viscosity
inclusions
formalism
oscillations
Inclusion
Oscillation

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Bulk viscosity of strange quark matter : Urca versus nonleptonic processes. / Sa'd, Basil A.; Shovkovy, Igor; Rischke, Dirk H.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 75, No. 12, 125004, 04.06.2007.

Research output: Contribution to journalArticle

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