Published July 2007 | Version v1
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A measurement of spin asymmetries in quasi-real photo-production of hadrons with high transverse momentum at COMPASS

Creators

Description

During 2002-2004, the COMPASS experiment at the CERN SPS has recorded 1.5 fb-1 of deep inelastic scattering events with polarized muon beam and polarized deuterium target. The cross section for single-inclusive charged hadron production in dependence on the hadron's transverse momentum pT is extracted. A PYTHIA and GEANT simulation is used to obtain the acceptance correction factors. The double spin asymmetry ALLb,d is measured in the region 1 GeV/c<pT<3.5 GeV/c, the pT dependence of which is connected to the gluon polarization ΔG. (orig.)

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
206 p.
Report number
INIS-DE--0379

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39030676
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Thesis, Numerical Data
Descriptors DEI
CHARGED PARTICLES; DEEP INELASTIC SCATTERING; DEUTERIUM TARGET; DIFFERENTIAL CROSS SECTIONS; EXPERIMENTAL DATA; GEV RANGE 100-1000; HADRONS; INCLUSIVE INTERACTIONS; MUON REACTIONS; MUON-NUCLEON INTERACTIONS; PHOTON-NUCLEON INTERACTIONS; PHOTONUCLEAR REACTIONS; PHOTOPRODUCTION; POLARIZATION-ASYMMETRY RATIO; POLARIZED BEAMS; POLARIZED TARGETS; RELATIVISTIC RANGE; TRANSVERSE MOMENTUM
Descriptors DEC
BASIC INTERACTIONS; BEAMS; CHARGED-PARTICLE REACTIONS; CROSS SECTIONS; DATA; DIMENSIONLESS NUMBERS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; INELASTIC SCATTERING; INFORMATION; INTERACTIONS; LEPTON REACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LINEAR MOMENTUM; NUCLEAR REACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; SCATTERING; TARGETS