Pion electric polarizability from lattice QCD

Andrei Alexandru, Michael Lujan, Walter Freeman, Frank Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationXIth Conference on Quark Confinement and Hadron Spectrum
PublisherAmerican Institute of Physics Inc.
Volume1701
ISBN (Electronic)9780735413481
DOIs
StatePublished - Jan 22 2016
Externally publishedYes
Event11th Conference on Quark Confinement and Hadron Spectrum - Saint Petersburg, Russian Federation
Duration: Sep 8 2014Sep 12 2014

Other

Other11th Conference on Quark Confinement and Hadron Spectrum
CountryRussian Federation
CitySaint Petersburg
Period9/8/149/12/14

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Keywords

  • Lattice QCD
  • Polarizability

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Alexandru, A., Lujan, M., Freeman, W., & Lee, F. (2016). Pion electric polarizability from lattice QCD. In XIth Conference on Quark Confinement and Hadron Spectrum (Vol. 1701). [040002] American Institute of Physics Inc.. https://doi.org/10.1063/1.4938619