arXiv:2204.13491·v2·High Energy Physics — Phenomenology
First concurrent extraction of the leading-order scalar and spin proton polarizabilities
E. Mornacchi (1)🇩🇪 · S. Rodini (2)🇩🇪 · B. Pasquini (3 and 4)🇮🇹 · P. Pedroni (4) ((1) Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Mainz, Germany, (2) Institut für Theoretische Physik, Universität Regensburg, Regensburg, Germany, (3) Dipartimento di Fisica, Università degli Studi di Pavia, Pavia, Italy, (4) INFN Sezione di Pavia, Pavia, Italy)🇮🇹
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.