Transverse spin polarization as a novel probe of medium-induced transverse-momentum-broadening effect

Xin-yu Qin, Yu-Kun Song, Shu-yi Wei

The transverse polarization of $\Lambda$ hyperons within unpolarized jets originates from the transverse-momentum-dependent (TMD) fragmentation function $D_{1T}^{\perp }(z,p_T,{\mu }^2)$. In…