Alpha-Particle Condensation in Nuclear Systems

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dc.creatorFunaki, Y.
dc.creatorYamada, T.
dc.creatorHoriuchi, H.
dc.creatorRöpke, G.
dc.creatorSchuck, P.
dc.creatorTohsaki, A.
dc.date2008-09-03
dc.date.accessioned2026-07-07T10:00:15Z
dc.date.available2026-07-07T10:00:15Z
dc.descriptionThe onset of quartetting, i.e. alpha-particle condensation, in symmetric nuclear matter is studied with the help of an in-medium modified four nucleon equation. It is found that at very low density quartetting wins over pairing, because of the strong binding of the alpha-particles. The critical temperature can reach values up to around 6 MeV. Also the disappearance of alpha-particles with increasing density, i.e. the Mott transition, is investigated. In finite nuclei the Hoyle state, that is the 0_2^+ of 12C, is identified as an "alpha-particle condensate" state. It is conjectured that such states also exist in heavier n alpha-nuclei, like 16O, 20Ne, etc. For instance the 6-th 0^+ state of 16O at 15.1 MeV is identified from a theoretical analysis as being a strong candidate for an alpha condensate state. Exploratory calculations are performed for the density dependence of the alpha condensate fraction at zero temperature to address the suppression of the four-particle condensate below nuclear-matter density. Possible quartet condensation in other systems is discussed briefly
dc.description29 pages, 21 figures
dc.identifierhttps://arxiv.org/abs/0809.0542
dc.identifierhttp://arxiv.org/abs/0809.0542
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168279
dc.subjectNuclear Theory
dc.titleAlpha-Particle Condensation in Nuclear Systems
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