Antihyperon-hyperon production in a quark model

Journal Article · Tue May 20 00:00:00 EDT 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.54380· OSTI ID:21175490

Alberg, M A ^[1]; Henley, E M; Wilets, L ^[2]; Kunz, P D ^[3]

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1. Department of Physics, Seattle University, Seattle, Washington 98122 (United States)
2. Department of Physics, University of Washington, Seattle, Washington 98195 (United States)
3. Nuclear Physics Laboratory, University of Colorado, Boulder, Colorado 80309 (United States)

A quark model which includes both scalar and vector contributions to the reaction mechanism is used in a DWBA calculation of total and differential cross-sections, polarizations, and spin correlation coefficients for the reactions p-barp{yields}{lambda}-bar{lambda}, {lambda}-bar{sigma}, {sigma}-bar{lambda}, and {sigma}-bar{sigma} at laboratory momenta from threshold to 1.92 GeV/c. The free parameters of the calculation include the scalar and vector strengths, a quark cluster size parameter, and parameters of the unknown antihyperon-hyperon interactions. For {lambda}-bar{lambda} production, we also calculate the target depolarization D{sub nn}.

• OSTI ID: 21175490
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 412; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILAMBDA PARTICLES
ANTIPROTON REACTIONS
ANTIPROTONS
ANTISIGMA PARTICLES
CORRELATIONS
DEPOLARIZATION
DIFFERENTIAL CROSS SECTIONS
DWBA
GEV RANGE
NUCLEAR REACTION KINETICS
PAIR PRODUCTION
POLARIZATION
PROTON-ANTIPROTON INTERACTIONS
QUARK MODEL
QUARKS
SCALARS
SPIN