Speaker
Marco Zaccheddu
(Istituto Nazionale di Fisica Nucleare)
Description
We discuss how recent data from the Belle Collaboration on transverse $\Lambda$ polarisation measured in $e^+e^-$ annihilation processes could be used to extract, for the first time, the polarising fragmentation function. This, giving the probability that an unpolarised parton fragments into a transversely polarised spin-1/2 hadron, represents one of the 8 leading-twist transverse momentum dependent fragmentation functions. Preliminary results will be shown.
