Quarkonium polarization in low-$p_{\mathrm{T}}$ hadro-production: from past data to future opportunities

Pietro Faccioli, Ilse Krätschmer, Carlos Lourenço

Several fixed-target experiments reported J/$\psi$ and ${\rm Y}$ polarization measurements, as functions of Feynman $x$ ($x_{\mathrm{F}}$) and transverse momentum ($p_{\mathrm{T}}$), in three differe…