Multiply strange nuclear systems

Journal Article · Sat Oct 01 00:00:00 EDT 1994 · Annals of Physics (New York); (United States)

DOI:https://doi.org/10.1006/aphy.1994.1090· OSTI ID:6807008

Schaffner, J ^[1]; Dover, C B ^[2]; Gal, A ^[3]; Greiner, C ^[4]; Millener, D J ^[5]

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1. National Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States) Institut fuer Theoretische Physik, J. W. Goethe-Universitaet, D-600054 Frankfurt am Main (Germany)
2. National Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States) Physics Department, Brookhaven National Laboratory,k Upton, New York, 11973 (United States)
3. National Institute for Nuclear Theory, University of Washington, Seattle, Washington, 98195 (United States) Institut fuer Theoretische Physik, J. W. Goethe-Universitaet,k D-6005, Frankfurt am Main (Germany) Racah Institute of Physics, The Hebrew University, Jerusalem 91904 (Israel)
4. National Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States) Physics Department, Duke University, Durham, North Carolina 27706 (United States)
5. National Institute for Nuclear Theory, Univer

In these systems, the presence of filled [Lambda] orbitals blocks the strong decay [Xi][ital N][r arrow][Lambda][Lambda], leading to a strangeness fraction [ital f][sub [ital s]]=[vert bar][ital S][vert bar]/ [ital A][approx]1, density [rho][approx](2--3)[rho][sub 0], and charge fraction [ital f][sub [ital q]] in the range [minus]0.1[lt][ital q]/[ital A][lt]0.1, comparable to that of hypothetical stable strange quark matter ( strangelets''), but with a low binding energy per particle [ital E][sub [ital B]]/[ital A][approx][minus]10 to [minus]20 MeV. We compare with an approximate mass formula which qualitatively describes the results of the mean field calculations. Such weakly bound multi-strange objects can be stable for very large [ital A], unlike ordinary nuclei, since the Coulomb repulsion generated by the prtons is largely cancelled by the presence of a comparable number of [Xi][sup [minus]]'s, leading to a small net charge (positive or negative) of order [ital A][sup 1/3]. We comment on the weak decays of such subjects and the possibility of their production in relativistic heavy ion collisions. [copyright] 1994 Academic Press, Inc.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6807008
• Journal Information: Annals of Physics (New York); (United States), Vol. 235:1; ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HYPERNUCLEI
BINDING ENERGY
MEAN-FIELD THEORY
STABILITY
BOUND STATE
COUPLING CONSTANTS
HELIUM 4
HELIUM 5
HELIUM 7
HYPERON-HYPERON INTERACTIONS
HYPERONS
LAMBDA PARTICLES
LEAD 208
MESON-BARYON INTERACTIONS
NICKEL 56
NUCLEAR CORES
NUCLEONS
QUARK MODEL
SIGMA PARTICLES
STRANGE PARTICLES
STRONG INTERACTIONS
SU-3 GROUPS
THORIUM
TIN 132
XI PARTICLES
ACTINIDES
ALPHA DECAY RADIOISOTOPES
BARYON-BARYON INTERACTIONS
BARYONS
BASIC INTERACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COMPOSITE MODELS
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY NUCLEI
HELIUM ISOTOPES
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LAMBDA BARYONS
LEAD ISOTOPES
LIE GROUPS
LIGHT NUCLEI
MATHEMATICAL MODELS
METALS
MINUTES LIVING RADIOISOTOPES
NICKEL ISOTOPES
NUCLEAR FRAGMENTS
NUCLEI
PARTICLE INTERACTIONS
PARTICLE MODELS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SIGMA BARYONS
STABLE ISOTOPES
SU GROUPS
SYMMETRY GROUPS
TIN ISOTOPES
XI BARYONS
663110* - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-)
662340 - Hadron Interactions- (1992-)