Polarization Effects in Lambda and Anti-Lambda Production at HERMES

Journal Article · Tue Aug 04 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3215733· OSTI ID:21344419

Belostotski, S L ^[1]

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1. Petersburg Nuclear Physics institute, PNPI 188300 Gatchina, Lenigrad district (Russian Federation)

Study of the LAMBDA and LAMBDA hyperon production in the HERMES experiment is discussed. The data were collected using a 27.6 GeV longitudinally polarized positron (or electron) beam of the HERA accelerator and a polarized or unpolarized target. The transverse polarizations (perpendicular to the production plane) of the LAMBDA and LAMBDA hyperons have been measured. The spin transfer K{sub LL} from the longitudinally polarized target has been found for inclusively detected LAMBDA and LAMBDA events. Longitudinal spin transfer D{sub LL} from the beam to the LAMBDA hyperon in the deep inelastic scattering regime has been analyzed. The D{sub LL} for LAMBDA has been measured for the first time.

• OSTI ID: 21344419
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1149; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BARYONS
BEAMS
DEEP INELASTIC SCATTERING
ELECTRON BEAMS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRONS
HERA STORAGE RING
HYPERONS
INELASTIC SCATTERING
INTERACTIONS
LAMBDA BARYONS
LEPTON BEAMS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MEASURING INSTRUMENTS
MULTIPARTICLE SPECTROMETERS
PARTICLE BEAMS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
POLARIZATION
POLARIZED BEAMS
POLARIZED TARGETS
POSITRON BEAMS
SCATTERING
SPECTROMETERS
SPIN
STORAGE RINGS
STRANGE PARTICLES
TARGETS