Hypernuclear interactions and the binding energies of. lambda. and. lambda lambda. hypernuclei

Conference · Sun Nov 20 04:00:00 EST 1988 · AIP Conf. Proc.; (United States)

OSTI ID:6445128

Bodmer, A R; Usmani, Q N

By use of variational calculations a reasonable hadronic description is obtained of the s-shell hypernuclei, of /sup 9//sub ..lambda../Be, and of the well depth, with ..lambda..N forces which are consistent with ..lambda..p scattering and which are quite strongly spin-dependent, with reasonable TPE ..lambda..NN forces and with strongly repulsive dispersive-type ..lambda..NN forces. For the latter we also consider a spin-dependent version which is somewhat favored by our analysis. /sup 9//sub ..lambda../Be is treated as a 2..cap alpha..+..lambda.. system and is significantly overbound, approx. = MeV, if only ..cap alpha cap alpha.. and ..cap alpha lambda.. potentials are used. An ..cap alpha cap alpha lambda.. potential obtained from the ..lambda..NN forces nicely accounts for this overbinding. The ..lambda lambda.. hypernuclei /sub ..lambda..//sub ..lambda..//sup 6/He and /sub ..lambda..//sub ..lambda..//sup 10/Be are treated as ..cap alpha..+2..lambda.. and 2..cap alpha..+2..lambda.. systems. Use of the /sub ..lambda..//sub ..lambda..//sup 10/Be event gives approx. =1.5 MeV too little binding for /sub ..lambda..//sub ..lambda..//sup 6/He. The /sup 1/S/sub 0/ ..lambda../sub ..lambda../ potential obtained from /sup 10//sub ..lambda..//sub ..lambda../Be is quite strongly attractive, comparable to the ..lambda..N and also to the NN potential without OPE.

• Research Organization: Department of Physics, University of Illinois at Chicago, Chicago, IL 60680 Physics Division, Argonne National Laboratory, Argonne, IL 60439-4843 USA
• OSTI ID: 6445128
• Report Number(s): CONF-8805142-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 176:1
• Country of Publication: United States
• Language: English

Related Subjects

645204 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ALPHA PARTICLES
BARYON-BARYON INTERACTIONS
BARYONS
BERYLLIUM 10
BERYLLIUM 9
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BINDING ENERGY
CHARGED PARTICLES
CLUSTER MODEL
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HELIUM 6
HELIUM ISOTOPES
HYPERNUCLEI
HYPERON-HYPERON INTERACTIONS
HYPERONS
INTERACTIONS
ISOTOPES
LAMBDA BARYONS
LAMBDA PARTICLES
LIGHT NUCLEI
MATHEMATICAL MODELS
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR POTENTIAL
NUCLEI
NUCLEON-HYPERON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
POTENTIALS
RADIOISOTOPES
S STATES
STABLE ISOTOPES
STRANGE PARTICLES
VARIATIONAL METHODS
YEARS LIVING RADIOISOTOPES