Nuclear Theory Seminar

Calendar
Department of Physics Calendar
Date
Wed, Apr 26, 2017 2:00 pm - 3:30 pm
Location
PSC 3150

Description

Speaker: Yong Zhao

Speaker Institution: MIT

Title: Gluon Polarization in the Proton from Lattice QCD

Abstract: The gluon polarization contribution to the proton spin is calculated for the first time from lattice QCD. Though defined to be a time-dependent observable in the infinite momentum frame, the gluon polarization can be calculated on a Euclidean lattice with the large momentum effective theory. This calculation is carried out with valence overlap fermions on 2+1 flavor domain-wall fermion gauge configurations on four lattice spacings and four volumes including an ensemble with physical values for the quark masses. The result shows that the gluon polarization accounts for about one half of the proton spin, which is in line with recent RHIC data analysis.

Upcoming Events

Oct
20

Fri, Oct 20, 2017 11:00 am - 11:50 am

Oct
20

Fri, Oct 20, 2017 3:30 pm - 4:30 pm

Oct
20

Fri, Oct 20, 2017 4:15 pm - 5:15 pm

Oct
20

Fri, Oct 20, 2017 7:00 pm - 8:30 pm

Oct
21

Sat, Oct 21, 2017 7:00 pm - 8:30 pm

Oct
23

Mon, Oct 23, 2017 11:00 am - 12:00 pm

Oct
23

Mon, Oct 23, 2017 3:00 pm - 4:30 pm

Oct
23

Mon, Oct 23, 2017 4:00 pm - 5:00 pm

Oct
23

Mon, Oct 23, 2017 4:30 pm - 5:30 pm