Speaker
Marcin Stolarski
(LIP Laboratorio de Instrumentacao e Fisica Experimental de Part)
Description
A short review of the COMPASS results concerning gluon polarization
inside the nucleon, DG/G, is given including two new measurements:
Firstly, a DG/G determination in leading order and in three bin of
the gluon momentum fraction x_g from asymmetries in high-p$_T$
hadron pair production for Q$^2>$1 (GeV/c)$^2$;
secondly, a preliminary next-to-leading order analysis
based on open charm production, i.e. D mesons decaying via various
channels. The latter result is obtained from our combined proton
and deuteron data.
In addition the cross-section for the $D^*$ production is given and
kinematic distribution of the $D^*$ are compared with the AROMA generator.
Finally results for the LO flavor separation
of the three lightest quark polarized parton distributions.
Primary author
Marcin Stolarski
(LIP Laboratorio de Instrumentacao e Fisica Experimental de Part)
