Strange hadronic matter

Recent investigations of regions of stability for multi-strange hadronic systems, made up of nucleons and hyperons {p, n, Λ, Ξ 0 , Ξ − }, are reviewed. Relativistic mean field calculations, designed to reproduce the observed binding energies of ordinary nuclei and of Λ, Ξ and ΛΛ hypernuclei, predict a large class of such objects which are stable against strong decay, including the bulk limit A → ∞, with binding energies per baryon as large as E B A ∼ −22 MeV , large strangeness per baryon f s ∼ 1–1.2, small charge per baryon f q ∼ −0.1 to 0 and with baryon densities 2–3 times that of ordinary nuclear matter. A straightforward extension of the Bethe-Weizsäcker mass formula into the strange domain accounts satisfactorily for all of these features.

talk: Vancouver 1994/07/04
matter: hadronic
matter: strangeness
strangeness: multiple
matter: stability
hypernucleus
binding energy: mass number
mass number: binding energy
hyperon hyperon: interaction
interaction: hyperon hyperon

References(28)

Figures(0)

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