Compton Scattering on Light Nuclei
The University of North Carolina, Chapel Hill,
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Compton scattering on light nuclei (A = 2, 3) has emerged as an eﬀective avenue to search for signatures of neutron polarizabilities, both spin–independent and spin–dependent ones. In this discussion I will focus on the theoretical aspect of Compton scattering on light nuclei; giving ﬁrst a brief overview and therafter concentrating on our Compton scattering calculations based on Chiral eﬀective theory at energies of the order of pion mass. These elastic γd and γHe-3 calculations include nucleons, pions as the basic degrees of freedom. I will also discuss γd results where the ∆-isobar has been included explicitly. Our results on unpolarized and polarization observables suggest that a combination of experiments and further theoretical eﬀorts will provide an extraction of the neutron polarizabilities.
© Owned by the authors, published by EDP Sciences, 2010