J/$\psi$ polarization in p+p collisions at $\sqrt{s}$ = 200 GeV in STAR
Nuclear Experiment
2012-05-21 v1
Abstract
In this paper, J/ polarization at mid-rapidity in collisions at = 200 GeV measured in the STAR experiment at RHIC is reported. J/ production is analyzed via the dielectron decay channel. J/ polarization is extracted from the decay angular distribution in the helicity frame. The J/ polarization is measured at transverse momentum range (2 - 6) GeV/c and is found to be consistent with Color Singlet Model ( CSM), Color Octet Model (COM) predictions and with no polarization within current uncertainties.
Keywords
Cite
@article{arxiv.1202.0897,
title = {J/$\psi$ polarization in p+p collisions at $\sqrt{s}$ = 200 GeV in STAR},
author = {Barbara Trzeciak},
journal= {arXiv preprint arXiv:1202.0897},
year = {2012}
}
Comments
6 pages, 4 figure, Proceedings of the International Conference on Strangeness in Quark Matter 2011 (SQM2011), Krakow, Poland, September 18-24, 2011