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World of Physics Lecture
Start Date: 10/9/2015Start Time: 7:30 PM
End Date: 10/9/2015

Event Description:

Speaker: Abhay Deshpande
Prof. Abhay Deshpande works in experimental high energy nuclear physics. His current research focuses on understanding the contributions of quarks, antiquarks and gluons to the proton's spin using the PHENIX detector and high energy polarized proton beams at the Relativistic Heavy Ion Collider at BNL.

Topic: Spin Crisis: What do we know now?

Physicists have known since 1968 that protons and neutrons (collectively called the Nucleons) are made up of quarks, and that gluons bind them together. The nucleons are the building blocks of the visible universe. Theoretical ideas that prevailed in the '70s and '80s could explain most of the known properties of the nucleons successfully. And then there was a crisis! In 1988 an experiment at CERN revealed, astonishingly, that the simple idea that quark-spins would add up to make the proton's spin was simply wrong! The surprise was so unexpected, that the result became known as the "Spin Crisis." Several major experimental efforts were launched around the world to understand the crisis, the polarized Relativistic Heavy Ion Collider (RHIC) physics program at BNL, being one of the biggest ones. 
Location Information:
West Campus - Earth & Space Sciences Building  (View Map)
100 Nicolls Road
Main Entrance
Stony Brook, NY 11794
Phone: (631) 632-6000
Room: 001

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