Transverse momentum dependence of J/psi polarization at midrapidity in p plus p collisions at root s=200 GeV
2010
Abstract
The results of the measurement of the transverse momentum dependence of inclusive J/ψ polarization in p+p collisions at √s=200 GeV performed by the PHENIX Experiment at the Relativistic Heavy Ion Collider are reported. The J/ψ polarization is studied in the helicity, Gottfried-Jackson, and Collins-Soper frames for pT<5 GeV/c and |y|<0.35.
The results are compared to observations for other collision systems and center of mass energies and to different quarkonia production models.