Multi-lambda hypernuclei and the equation of state of hypermatter

  • Within a relativistic mean-field theory (RMFT) experimental data on the single-particle spectra of lambda hypernuclei are well reproduced. It is shown that the coupling constants cannot be fixed unambiguously from the single-particle spectra. The stability and structure of multi-lambda hypernuclei is explored on the basis of the RMFT using the coupling constants as determined from the observed single lambda hypernuclear levels. It is predicted that multistrange nuclei exhibit an enhanced interaction radius, which further increases in the case of finite temperatures. We suggest that multi-lambda hypernuclei could be produced in high-energy heavy ions and observed in secondary noncharge-changing reactions. The equation of state of lambda matter and the possibility of pure lambda droplets are also discussed.

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Author:Michael Rufa, Jürgen SchaffnerORCiDGND, Joachim MaruhnORCiDGND, Horst StöckerORCiDGND, Walter GreinerGND, Paul-Gerhard Reinhard
Pubmed Id:
Parent Title (English):Physical review. C, Nuclear physics
Place of publication:Woodbury, NY
Document Type:Article
Date of Publication (online):2006/06/02
Year of first Publication:1990
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/06/02
Volume:42 + 43 [Erratum]
Issue:6 + 4 [Erratum]
Page Number:10 + 1 [Erratum]
First Page:2469 + 2020 [Erratum]
Last Page:2478 + 2020 [Erratum]
©1990 American Physical Society0
Enthält auch Erratum aus Physical review. C, Nuclear physics, 43.1991, Nr. 4, S. 202, doi:10.1103/PhysRevC.43.2020
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:20.00.00 NUCLEAR PHYSICS / 21.00.00 Nuclear structure (for nucleon structure, see 14.20.Dh Properties of protons and neutrons; 13.40.-f for electromagnetic processes and properties; 13.60.Hb for deep-inelastic structure functions) / 21.80.+a Hypernuclei
Licence (German):License LogoDeutsches Urheberrecht