Polarization of Ξ- and Ω- hyperons produced from neutral beams
Creators
- 1. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
- 2. Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)
- 3. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)
- 4. Fermilab, Batavia, Illinois 60510 (United States)
Description
We have studied the polarization of Ξ- and Ω- hyperons produced by high energy neutral particle beams. An unpolarized neutral beam striking a target at ±1.8 mrad produced 1.4 x107Ξ-close-quote s with an average momentum of 395 GeV/c which were unpolarized, within a sensitivity limit of 0.007, and 2.2 x105 Ω-close-quote s with a polarization of +0.042±0.007 at an average momentum of 374 GeV/c. A polarized neutral beam striking a target at 0.0 mrad produced 7.1 x105Ξ-close-quote s which had a polarization of -0.118±0.004 at an average momentum of 393 GeV/c and 1.8 x104 Ω-close-quote s with a polarization of -0.069±0.023 at an average momentum of 394 GeV/c. The polarized neutral beam measurement is in good agreement with a previous measurement. The unpolarized neutral beam results are not understood in the context of the current models of hyperon polarization. copyright 1996 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 54
- Journal Issue
- 11
- Journal Page Range
- p. 6610-6619.
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28015422
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- HYPERONS; NEUTRAL PARTICLES; OMEGA BARYONS; PARTICLE BEAMS; PARTICLE PRODUCTION; POLARIZATION; SENSITIVITY; XI BARYONS
- Descriptors DEC
- BARYONS; BEAMS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; STRANGE PARTICLES