Speaker
Dr
Alexandre Lebedev
(Iowa State University)
Description
Measurements of heavy quark bound states, like $J\psi$ meson,
provide a unique opportunity to access basic QCD properties.
One of the observables important for understanding $J\psi$
production and dynamics is angular distribution of decay products,
sometimes also called "polarization". $J/\psi$ polarization
measurements can help to differentiate between various models
of $J/\psi$ producion.
We present the status of our study of angular distributions
for $J/\psi \rightarrow \mu^+\mu^-$ decays in p+p
collisions at $\sqrt{s} = 510 GeV$ by the PHENIX
Collaboration at RHIC. The analysis is done in four
different reference frames. We discuss the methods used
in the analysis, uncertainty calculations, and possible
interpretation of the results.
| On behalf of collaboration: | PHENIX |
|---|
Author
Dr
Alexandre Lebedev
(Iowa State University)
