Bulletin of the American Physical Society
APS April Meeting 2014
Volume 59, Number 5
Saturday–Tuesday, April 5–8, 2014; Savannah, Georgia
Session B3: Invited Session: Hadron Polarizabilities |
Hide Abstracts |
Sponsoring Units: DNP GFB Chair: Elton Smith, Thomas Jefferson National Accelerator Facility Room: Chatham Ballroom B |
Saturday, April 5, 2014 10:45AM - 11:21AM |
B3.00001: Hadron polarizabilities: what do they tell us about hadron structure? Invited Speaker: D. Hornidge A central problem of modern physics research is the solution to QCD in the non-perturbative regime. One method of testing QCD in this low-energy region is by measuring certain structure constants of hadrons---called polarizabilities---that show particular promise of allowing a direct connection to the underlying quark/gluon dynamics through comparison to modern QCD-inspired model calculations, and to solutions of QCD done computationally on the lattice. This talk will give an overview of the current state of both theory calculations and experimental measurements of hadron polarizabilities. [Preview Abstract] |
Saturday, April 5, 2014 11:21AM - 11:57AM |
B3.00002: Measuring the polarizabilities of the proton and pion with photon and hadron beams Invited Speaker: Rory Miskimen Polarizabilities provide an important test point for models of hadron structure, as well as potentially helping to resolve two of the most outstanding anomalies in nuclear physics, the muon g-2 and the proton charge radius puzzles. Recent progress in measurements of the proton scalar polarizabilities, $\alpha$ and $\beta$, and spin-polarizabilities from polarized Compton scattering experiments at Mainz and TUNL/HIGS are presented. This new generation of Compton scattering experiments utilize linear/circularly polarized incident photons and polarized targets. For many years the charged pion polarizability ranked among the most important tests of ChPT unresolved by experiment. A new result for the charged pion polarizability from the Compass experiment is presented, and the outlook for a precision measurement of the charged pion polarizability at JLab through the $\gamma \gamma \rightarrow \pi^+ \pi^-$ reaction is discussed. [Preview Abstract] |
Saturday, April 5, 2014 11:57AM - 12:33PM |
B3.00003: Connecting the muon g-2 and proton size anomalies to hadron polarizabilities Invited Speaker: Carl Carlson Hadron polarizabilities matter in a wider context. As examples of this we will discuss how they affect corrections to the muonic hydrogen Lamb shift (crucially relevant to the proton radius problem and by extension to the muon (g-2) anomaly), and how they affect calculations of the electromagnetic part of neutron-proton mass difference (the Cottingham formula), where uncertainties in the magnetic polarizability are currently by far the largest source of uncertainly in final result. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700