Physics PAN Seminar by Prof. Dr. Raju Venugopalan (Brookhaven National Lab & Stony Brook University)

Warning Icon This event is in the past.

Date: February 26, 2021
Time: 3:30 p.m. - 4:30 p.m.
Location: ZOOM
Category: Seminar
Physics PAN Seminar by Prof. Dr. Raju Venugopalan (Brookhaven National Lab & Stony Brook University)
 
Title: The chiral anomaly and the proton's spin: axion-like dynamics and spin diffusion via topological transitions
 
Abstract: The proton's spin arises fundamentally from the complex many-body dynamics of its spinning  quark and gluon constituents. In Quantum Chromodynamics, this dynamics is strongly influenced by the chiral anomaly, a property of the QCD vacuum not manifest in the equations of motion. We will outline the key elements of a powerful formalism where the role of the anomaly is made manifest and show that the appropriate treatment of the anomaly is deeply tied to the resolution of the so-called U_A(1) problem in QCD. At high energies, we conjecture that the corresponding emergent dynamics is analogous to that of a popular dark matter candidate, the axion, with spin diffusion occurring via topological "sphaleron" transitions. These ideas have strong bearing on searches for the Chiral Magnetic Effect at RHIC and can be cleanly tested at a future Electron-Ion Collider.
 
 
Join Zoom Meeting
https://wayne-edu.zoom.us/j/5456648463?pwd=bXM5bGhCMndiMmt3UzdqQ0FRNjlRdz09

Meeting ID: 545 664 863
Passcode: 810058
One tap mobile
+13017158592,,5456648463#,,,,,,0#,,810058# US (Washington D.C)
+13126266799,,5456648463#,,,,,,0#,,810058# US (Chicago)

Dial by your location
        +1 301 715 8592 US (Washington D.C)
        +1 312 626 6799 US (Chicago)
        +1 646 876 9923 US (New York)
        +1 346 248 7799 US (Houston)
        +1 408 638 0968 US (San Jose)
        +1 669 900 6833 US (San Jose)
       
Meeting ID: 545 664 8463
Passcode: 810058
Find your local number: https://wayne-edu.zoom.us/u/abCNul4agt


Contact

Debojit Sarkar
3138029672
debojit03564@gmail.com

Cost

Free
February 2021
SU M TU W TH F SA
31123456
78910111213
14151617181920
21222324252627
28123456