22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Virtual Compton Scattering off a Spinless Target in the AdS/QCD correspondence

22 Jul 2010, 17:27
14m
Salle 252A ()

Salle 252A

Parallel Session Talk 12 - Beyond Quantum Field Theory Approaches (including String Theories) 12 - Beyond Quantum Field Theory Approaches (including String Theories)

Speaker

Dr Samuel Wallon (CNRS/LPT Orsay)

Description

We study the doubly virtual Compton scattering off a spinless target gamma* P -> gamma* P' within the Anti-de Sitter(AdS)/QCD formalism. We find that the general structure allowed by the Lorentz invariance and gauge invariance of the Compton amplitude is not easily reproduced with the standard recipes of the AdS/QCD correspondence. In the soft-photon regime, where the semi-classical approximation is supposed to apply best, we show that the measurements of the electric and magnetic polarizabilities of a target like the charged pion in real Compton scattering, can already serve as stringent tests.

Primary author

Dr Samuel Wallon (CNRS/LPT Orsay)

Co-authors

Dr Claude Roiesnel (CPHT, Ecole Polytechnique) Prof. Cyrille Marquet (IPhT, CEA Saclay)

Presentation Materials