[Jlab-seminars] Brian Tiburzi Seminars (at W&M and JLab Theory Center)

[Mary Fox]

W&M PHYSICS COLLOQUIUM

Thursday, January 31, 2013
4:00 PM
Small Hall, Room 111

Brian Tiburzi
City College of New York


*Looking Under the Femtoscope: A Focus on Strong Interactions*

At scales a few billion times smaller than microscopic, quark and gluon interactions are responsible for the properties of protons and neutrons. While these femtoscopic degrees of freedom have been identified for nearly a half century, quantitative predictions from the theory of strong interactions have remained elusive until quite recently. I will bring the difficulties of the femtoscopic world into focus, and describe the progress being made at predicting properties of protons and neutrons. Resolving physics at the femtoscale will fill a fundamental gap in our understanding of the strong force. This quantitative understanding will solve old problems, such as why protons and neutrons have the masses and magnetic moments they do, in addition to new problems, such as how protons and neutrons couple to physics beyond the standard model.


For more information please visithttps://events.wm.edu/event/view/physics/18460  .
*Refreshments will be served in Room 122 at 3:30 PM

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JLAB THEORY CENTER SEMINAR

Friday, Feb.1, 2013
11:00 a.m. (coffee at 10:45 a.m.)
CEBAF Center, Room A110

Brian Tiburzi
City College of New York


*Anatomy of Hadronic Parity Violation on the Lattice*

New experiments to measure hadronic parity violation in few nucleon systems give reason for a concerted effort to study parity violation theoretically using QCD. I will make the case that hadronic parity violation presents an opportunity for lattice QCD computations. Perturbative QCD results on the running of parity violation down to hadronic scales will be reported. Some of the challenges that confront lattice calculations of parity violation will be presented, along with some speculative solutions.

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