Speaker
Description
Gluon nuclear Parton distribution functions (nPDFs) have been the subject of many studies over the past years, since they are important for many processes and difficult to constrain. Recently, nCTEQ15 nPDFs have been updated with vector boson production data to address this issue. To constrain the gluon nPDF further, particularly at low x, we present two new global analyses adding single inclusive light and heavy meson production data. The former analysis adds pion and kaon production data and investigates the impact of the fragmentation function choice.
The second analysis extends this further by including both open heavy flavored mesons and heavy quarkonia using a data driven approach. The result is a consistent new nPDF fit with greatly reduced gluon uncertainties.
