PoS - Proceedings of Science
Volume 317 - The 9th International workshop on Chiral Dynamics (CD2018) - Session: Hadron Structure
Measurements of Meson Polarizabilies
D. Lawrence
Full text: pdf
Published on: February 28, 2020
Abstract
The EM polarizability of the charged pion ranks among the most important tests of low-energy QCD presently unresolved by experiment. It makes a potentially significant contribution to hadronic light-by-light scattering impacting the uncertainty in the SM. Experimentally, the electromagnetic polarizability has been accessed using various reactions which include Compton scattering and the Primakoff effect. Recently, interest in meson polarizabilities has been renewed with a recent COMPASS experiment(2015) and an approved experiment at Jefferson Lab. A brief status of the current experimental landscape of meson polarizabilities is presented.
DOI: https://doi.org/10.22323/1.317.0032
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