First concurrent extraction of the leading-order scalar and spin proton polarizabilities

Abstract

We performed the first simultaneous extraction of the six leading-order proton polarizabilities. We reached this milestone thanks to both new high-quality experimental data and an innovative bootstrap-base fitting method. These new results provide a self-consistent and fundamental benchmark for all future theoretical and experimental polarizability estimates.

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• The Present and Future of QCD
• The Proton Electromagnetic Generalized Polarizabilities