$J/\psi$ polarization in p+p collisions at $\sqrt{s}$ = 200 GeV in STAR

STAR Collaboration, L. Adamczyk, J. K. Adkins +353

We report on a polarization measurement of inclusive $J/\psi$ mesons in the di-electron decay channel at mid-rapidity at 2 $<p_T<$ 6 GeV/$c$ in $p+p$ collisions at $\sqrt{s}$ = 200…