Electromagnetic polarizabilities are important parameters for understanding the interaction between photons and hadrons. For pions these quantities are poorly constrained experimentally since they can only be measured indirectly. New experiments at CERN and Jefferson Lab are planned that will measure the polarizabilities more precisely. Lattice QCD can be used to compute these quantities directly in terms of quark and gluons degrees of freedom, using the background field method. We present results for the electric polarizability for two different quark masses, light enough to connect to chiral perturbation theory. These are currently the lightest quark masses used in polarizability studies.
|Title of host publication
|XIth Conference on Quark Confinement and Hadron Spectrum
|Nora Brambilla, Sergei Kolevatov, Alexander Andrianov, Victor Kim
|American Institute of Physics Inc.
|Published - Jan 22 2016
|11th Conference on Quark Confinement and Hadron Spectrum - Saint Petersburg, Russian Federation
Duration: Sep 8 2014 → Sep 12 2014
|AIP Conference Proceedings
|11th Conference on Quark Confinement and Hadron Spectrum
|9/8/14 → 9/12/14
- Lattice QCD
ASJC Scopus subject areas
- General Physics and Astronomy