Collins azimuthal asymmetries of hadron production inside jets

• DOI: 10.1016/j.physletb.2017.10.031
• Publication Date: 2017-10-18T20:17:16Z
• Authors: Zhong-Bo Kang; Alexei Prokudin; Felix Ringer; Feng Yuan
• Keywords: Annihilation

We investigate the Collins azimuthal asymmetry of hadrons produced inside jets in transversely polarized proton-proton collisions. Recently, quark transversity distributions and fragmentation functions have been extracted within global analyses from data processes semi-inclusive deep inelastic scattering electron-positron annihilation. calculate for charged pions using these extractions RHIC kinematics at center-of-mass energies 200 500 GeV. compare our results with recent STAR Collaboration find good agreement, which confirms universality functions. In addition, we further explore impact transverse momentum dependent evolution effects.