new page for Asymmetry Analysis Colaboration (AAC) is available.
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Working Group on Polarized Parton Distribution Functions
T.-A. Shibata (TIT/RIKEN)
S. Kumano (Saga)
N. Saito (RIKEN)
The working group on the polarized parton distribution functions (pol-pdf's)
has been formulated to study the current constraints on the pol-pdf. The
spin structure of the nucleon has been studied in polarized lepton scattering
off the polarized nucleon target (pol-DIS). As revealed in the "proton
spin crisis", our understanding of the spin structure is not sufficient
yet. Especially the gluon polarization, sea-quark polarization and flavor
decomposition are not tightly constrained by the pol-DIS experiments.
On the other hand, the experiments on the spin structure are entering
to new stages:
further precision measurement in inclusive pol-DIS
polarized proton-proton collision
The goals of those experiments are
gluon polarization measurement
sea-quark polarization measurement
The results from those experiment will contribute much on the understanding
of the spin structure of the nucleon. This working group has been formulated
summarize the current both experimental and theoretical knowledges on the
develop one of the best pol-pdf sets
update the pol-pdf sets including new experimental data. We are going to
hold monthly meeting as well as the virtual conference on this home page.
Your participation and comments are always welcome!
group (chair:T. Morii)
group (chair: S. Kumano)
analysis group (chair: T.-A. Shibata)
papers (link to HEP database)
August 6, 1996