Probing gluon helicity and proton TMDs: insights from JAM analysis and future prospects

by Dr Yiyu Zhou (Turin U.)

Wednesday Mar 5, 2025, 9:00 PM → 10:30 PM Asia/Shanghai

Abstract:

In the first part of this talk, I will overview the recent progress from JAM on extraction of helicity gluon PDFs. By leveraging existing experimental data and lattice data, the sign of the gluon helicity distribution is examined. Furthermore, a new observable at JLab 22 GeV is introduced to enhance the discrimination of the gluon helicity sign. In the second part, I will discuss transverse momentum dependent (TMD) observables that hold potential for use in global QCD analysis.

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About the speaker:

Yiyu Zhou graduated from Xi'an Jiaotong University in 2015. He earned his PhD in 2021 from the College of William & Mary, specializing in global QCD analysis. During his first postdoc, he worked on jet substructure calculations at South China Normal University and UCLA. He is currently a postdoctoral researcher at the University of Turin, focusing on TMD observables in global QCD analyses. His research interests are primarily in global QCD analysis and calculation of jet substructure related observables with SCET, and their applications in high energy nuclear and particle physics.

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Meeting ID: 87344795782
Password: 453882
Meeting link
https://us02web.zoom.us/j/87344795782?pwd=QIFaFP7fY7V5aT9Rp4u7i3wrU4kFqA.1

 

 

LFQCD.pdf