Extraction Of Delta g/g From Hermes Data On Inclusive Charged Hadrons

Details Extraction Of Delta g/g From Hermes Data On Inclusive Charged Hadrons Extraction Of Delta g/g From Hermes Data On Inclusive Charged Hadrons

2007-07-24

arxiv.org/abs/0707.3617v1

AIP Conf.Proc.915:331-334,2007

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 2 figures, Proceedings of Spin 2006, Kyoto, Japan, 2-7 Oct. 2006

Scientific paper

10.1063/1.2750789

Hermes has measured longitudinal double spin asymmetries as a function of transverse momentum pT using charged inclusive hadrons from electroproduction off a deuterium target. At pT>1 GeV, the asymmetries are sensitive to the spin dependent gluon distribution Delta g. To extract the gluon polarization Delta g/g, information on the background asymmetry and the subprocess kinematics has been obtained from a Leading Order Monte Carlo model. Values for Delta g/g have been calculated both as a function of the measured pT and x, using two different methods, in the region pT>1.05 GeV.

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