Speaker
Prof.
Wen-Chen Chang
(Academia Sinica)
Description
In this talk, we will briefly review recent experimental and theoretical progress on the pion and kaon PDFs. Furthermore, we will provide quantitative evidence within the CEM and NRQCD frameworks that the existing pion-induced fixed-target J/psi and psi (2S) data are sensitive to the gluon density of pions and favor the pion PDFs with relatively large gluon contents at large x. The recent work of extending the study to the poorly known kaon PDFs will be reported.