Strange dibaryon production in relativistic heavy ion collisions

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6646238

Dover, C B

We review theoretical predictions for the mass spectrum of strange dibaryons, with emphasis on S = /minus/2 states. In a version of the Callen-Klebanov model applied to dibaryons, the lowest-lying configuration is an SU(3) flavor (10*) with J/sup ..pi../ = O/sup +/ and isospin I = 1, in contrast to the six-quark (Q/sup 6/) bag model, which yields the H dibaryon (flavor (1), J/sup ..pi../ = O/sup +/, I = O) as the lowest S = /minus/2 excitation. Possible experimental consequences of this difference level order are discussed. For the H, we discuss formation rates in relativistic heavy ion collisions. For Brookhaven AGS energies (15 GeV/A), we find a rate of order 10/sup /minus/2/ H's per central collision. Since the H is produced in a high multiplicity environment in heavy ion collisions, its detection poses a problem. Several possible detection schemes for the H are investigated. These include studies of weak decays (..sigma../sup minus/p ''vees''), diffractive dissociation (Hp ..-->.. ..lambda lambda..p ..-->.. 3p + 2..pi../sup /minus//) and nuclear fragments with anomalous charge/mass ratios. 40 refs., 5 figs., 2 tabs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6646238
• Report Number(s): BNL-41934; CONF-8809143-3; ON: DE89003159
• Resource Relation: Conference: Hypernuclear and low-energy kaon physics, Padova, Italy, 12 Sep 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIBARYONS
PARTICLE PRODUCTION
CROSS SECTIONS
HEAVY ION REACTIONS
HYPERNUCLEI
MASS SPECTRA
PARTICLE DECAY
RELATIVISTIC RANGE
STRANGENESS
SU-3 GROUPS
BARYONS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
LIE GROUPS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
PARTICLE PROPERTIES
SPECTRA
SU GROUPS
SYMMETRY GROUPS
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties