Lattice Calculation of Pion Form Factor with Overlap Fermions-湖南大学物理与微电子科学学院

Lattice Calculation of Pion Form Factor with Overlap Fermions

创建于2020年07月06日星期一作者 : 科研办浏览量 :

Speaker：王根，美国肯塔基大学
Time：2020/7/25, 9:00-10:00 (GMT＋8)
Tencent Meeting ID: 633 417 380
Contact：程山

Abstract: Lattice Quantum Chromodynamics QCD provides a way to have a precise calculation and a new way of understanding the hadrons from first principles. From this perspective, I will first have a short description of Lattice QCD and introduece its basic variables. Then, I will present a precise calculation of the pion form factor using overlap fermions on six ensembles of 2+1-flavor domain-wall configurations generated by the RBC/UKQCD collaboration with pion masses varying from 137 to 339 MeV. With a z-expansion fitting of our data, we find that 〈r_π^2 〉=0.433(9)(13) 〖fm〗^2 depends on both the valence and sea quark masses strongly, our prediction of the pion form factor up to Q^2=1.0 〖GeV〗^2 agrees well with experiments.

About the speaker：Gen Wang,is currently a PhD graduate stuent at University of Kentucky, USA. He did his B.Sc in physics from Huazhong University of Science and Technology in 2013, Wuhan, China.