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Diquark condensatio...
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Blaschke, DavidRostock University
(författare)
Diquark condensation effects on hot quark star configurations
- Artikel/kapitelEngelska2004
Förlag, utgivningsår, omfång ...
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Elsevier BV,2004
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:ltu-11596
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-11596URI
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https://doi.org/10.1016/j.nuclphysa.2004.02.022DOI
Kompletterande språkuppgifter
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Språk:engelska
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Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Validerad; 2004; 20061216 (ysko)
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The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation. We investigate the effects of a variation of the formfactors of the interaction on the phase diagram of quark matter. Special emphasis is on the occurrence of a diquark condensate which signals a phase transition to color superconductivity and its effects on the equation of state under the condition of β-equilibrium and charge neutrality. We calculate the quark star configurations by solving the Tolman-Oppenheimer-Volkoff equations and obtain for the transition from a hot, normal quark matter core of a protoneutron star to a cool diquark condensed one a release of binding energy of the order of ΔMc2˜1053 erg. We find that this energy could not serve as an engine for explosive phenomena since the phase transition is not first order. Contrary to naive expectations the mass defect increases when for a given temperature we neglect the possibility of diquark condensation.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Fredriksson, SverkerLuleå tekniska universitet,Materialvetenskap(Swepub:ltu)sverker
(författare)
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Grigorian, H.Rostock University
(författare)
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Oztas, A.M.Hacettepe University, Ankara
(författare)
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Rostock UniversityMaterialvetenskap
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Nuclear Physics A: Elsevier BV736:1-2, s. 203-2190375-94741873-1554
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