Results on the Spin Structure of the Nucleon from COMPASS

Results on the Spin Structure of the Nucleon from COMPASS

Highlights of the nucleon spin studies from the COMPASS experiment at CERN are presented. Three independent measurements of the gluon polarization give values compatible with zero for x close to 0.1. The quark helicity distributions are determined for all flavors. On the transversity side, Collins a...

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Bibliographische Detailangaben
1. Verfasser: Kunne, F.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
ANGULAR MOMENTUM
ASYMMETRY
BARYONS
BOSONS
CERN
CLOSED PLASMA DEVICES
COMPASS-D TOKAMAK
COMPOSITE MODELS
DEUTERIUM TARGET
DISTRIBUTION
DRELL MODEL
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR MODEL
GLUONS
HADRONS
HELICITY
INTERNATIONAL ORGANIZATIONS
MATHEMATICAL MODELS
NUCLEONS
ORIENTATION
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POLARIZATION
PROTONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
SPIN
SPIN ORIENTATION
TARGETS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
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Beschreibung
Zusammenfassung:Highlights of the nucleon spin studies from the COMPASS experiment at CERN are presented. Three independent measurements of the gluon polarization give values compatible with zero for x close to 0.1. The quark helicity distributions are determined for all flavors. On the transversity side, Collins and Sivers asymmetries are measured for proton and deuteron targets. Plans for COMPASS-II include DVCS as well as polarized Drell-Yan measurements.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3536598