Multiply strange nuclear systems

Journal Article · Sat Oct 01 04:00:00 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), Journal Name: Annals of Physics (New York); (United States) Vol. 235:1; ISSN APNYA6; ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

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