|Time: 2:40pm, May 23, 2013, Thursday|
Location: Room 9409
Speaker: Dr. ZHANG Hongfei
Title: The investigation of P-wave quarkonia productions, polarizations and decays in the framework of NRQCD
Abstract:NRQCD provide a rigorous procedure of perturbative calculation of heavy-quarkonium related processes in the expansion of both alpha_s and v (relative velocity of quarks in quarkonium). P-wave states are not only interesting in phenomenology but also contribute essential parts to S-wave states productions and polarizations. This talk gives a brief introduction to some recent theoretical progress in P-wave quarkonia related processes and shows how they effect the conclusion of J/psi polarization at hadron colliders.
It also shows how NRQCD scale is introduced and the dependence of the results on this scale. .