Institute of Information Science Academia Sinica
Topic: Glauber gluons in pion-induced Drell-Yan processes
Speaker: Dr. Chun-Peng Chang (National Tsinghua University)
Date: 2017-09-12 (Tue) 14:00 – 16:00
Location: Conference Room 727 at IIS new Building
Host: Kai-Min Chung


We point out that in the particle collider, the existence of Glauber gluons can account for the violation of the anomalous lepton angular distribution, observed in pion-induced Drell-Yan processes. It is argued that the Glauber effect is significant in the pion due to its unique role of being a Nambu-Goldstone boson and a q-qbar bound state simultaneously. We propose to discriminate the above resolutions by measuring the p-pbar Drell-Yan process.