6533b854fe1ef96bd12af485

RESEARCH PRODUCT

Proton polarizabilities from polarized Compton scattering: low-energy expansion

Nadiia Krupina

subject

Nuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Nuclear TheoryPhysics::Atomic and Molecular ClustersFOS: Physical sciencesPhysics::Accelerator PhysicsPhysics::Atomic Physics

description

We reexamine the low-energy expansion of polarized Compton scattering off the proton and show that the leading non-Born contribution to the beam asymmetry of low-energy Compton scattering is given by the magnetic polarizability alone, the electric polarizability cancels out. Based on this fact we propose to determine the magnetic dipole polarizability of the proton from the beam asymmetry. We also present the low-energy expansion of doubly-polarized observables, from which the spin polarizabilities can be extracted.

yearjournalcountryeditionlanguage
2014-05-06
http://arxiv.org/abs/1405.1294