Speaker
Patricia Liebing
(RIKEN / BNL)
Description
HERMES has used a high statistics data sample of charged inclusive hadrons to
measure double spin asymmetries as a function of p_T. From these asymmetries
Delta g/g has been extracted in the region of 1<p_T<2 GeV, corresponding
to x\approx0.2-0.3 The information on the background asymmetry and the
subprocess kinematics has been obtained from a Leading Order Monte Carlo
model and existing parametrizations of the spin dependent quark distributions.
Values for Delta g/g have been calculated both as a function of
the measured p_T and x. The results will be presented together with
comparisons of the Monte Carlo and data and a
study on the effects of varying the model's parameters.
Author
Patricia Liebing
(RIKEN / BNL)
