The Strange Quark Polarisation from Charged Kaon Production on Deuterons

The strange quark helicity distribution {delta}s(x) is derived at LO from the semi-inclusive and inclusive spin asymmetries measured by the COMPASS experiment at CERN. The significance of the results is found to depend critically on the ratio of the s-bar and u quark fragmentation functions into kao...

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Bibliographic Details
Main Author: Windmolders, R.
Format: Conference Proceeding
Language:English
Subjects:
ASYMMETRY
DEUTERONS
HELICITY
INCLUSIVE INTERACTIONS
KAONS PLUS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE KINEMATICS
PARTICLE PRODUCTION
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POLARIZATION
QUARK-GLUON INTERACTIONS
S QUARKS
SEMI-INCLUSIVE INTERACTIONS
SPIN
U QUARKS
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Summary:The strange quark helicity distribution {delta}s(x) is derived at LO from the semi-inclusive and inclusive spin asymmetries measured by the COMPASS experiment at CERN. The significance of the results is found to depend critically on the ratio of the s-bar and u quark fragmentation functions into kaons {integral}D{sub s-bar}{sup K+}(z)dz/{integral}D{sub u}{sup K+}(z)dz.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3215669