Polarization of [Omega][sup [minus]] hyperons produced in 800 GeV proton-beryllium collisions

Journal Article · Mon Feb 15 04:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.900· OSTI ID:6743649

Luk, K B; James, C; Rameika, R ^[1]; Diehl, H T; Teige, S; Thomson, G B; Zou, Y ^[2]; Ho, P M; Longo, M J; Nguyen, A ^[3]; Duryea, J; Guglielmo, G; Heller, K; Johns, K; Thorne, K ^[4]

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1. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
2. Department of Physics and Astronomy, Rutgers-The State University, Piscataway, New Jersey 08854 (United States)
3. Department of Physics, University of Micigan, Ann Arbor, Michigan 48109 (United States)
4. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

The polarization of 103 211 [Omega][sup [minus]] hyperons produced in 800 GeV proton-beryllium inclusive reactions has been measured. Between 0.3[lt][ital x][sub [ital F]][lt]0.7 and 0.5[lt][ital p][sub [ital t]][lt]1.3 GeV/[ital c], the [Omega][sup [minus]] polarization is found to be consistent with zero, with a mean value of [minus]0.01[plus minus]0.01 at [l angle][ital x][sub [ital F]][r angle]=0.5 and [l angle][ital p][sub [ital t]][r angle]=0.95 GeV/[ital c]. This behavior is similar to that of [bar [Lambda]][sup 0], which also does not have any quarks in common with the incident proton, but is different from [bar [Xi]][sup +], which is significantly polarized in the same kinematic region.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6743649
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:7; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
BARYON REACTIONS
BARYONS
BERYLLIUM ISOTOPES
CALCULATION METHODS
CHARGED-PARTICLE REACTIONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRONS
HYPERONS
INFORMATION
ISOTOPES
LINEAR MOMENTUM
MASS SPECTRA
MONTE CARLO METHOD
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
OMEGA BARYONS
PARTICLE KINEMATICS
PARTICLE PRODUCTION
POLARIZATION
PROTON REACTIONS
SPECTRA
STRANGE PARTICLES
TRANSVERSE MOMENTUM