Speaker
Volodymyr Biloshytskyi
(Johannes Gutenberg University Mainz)
Description
The Bernabéu-Tarrach sum rule, which could potentially provide an additional data-driven constraint on nucleon electric polarizabilities, will be discussed. Moreover, its convergence implies a sum rule for the unknown subtraction function in the two-photon exchange contribution to the Lamb shift. The verification of these sum rules using covariant chiral perturbation theory and the naïve parton model will be provided.
Primary author
Volodymyr Biloshytskyi
(Johannes Gutenberg University Mainz)
