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Virtual Compton Scattering off a Spinless Target in AdS/QCD
release_utfdwkkskjanfpqwp4cisw6g4q
by
Cyrille Marquet, Claude Roiesnel, Samuel Wallon
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as a article
.
2010
Abstract
We study the doubly virtual Compton scattering off a spinless target
γ^*P→γ^*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.
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1002.0566v1
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