Deuteron Compton Scattering: A Random Walk
Abstract
In this sketch, some recent developments in Compton scattering off the deuteron are reviewed. The strong energy-dependence of the scalar magnetic dipole polarisability βM1 turns out to be crucial to understand the data from Saskatoon at 94 MeV. Chiral Effective Field Theory is used to extract the static iso-scalar dipole polarisabilities as αs=12.61.4stat1.0wavefu and βs=2.31.7stat0.8wavefu, in units of 10-4 fm3. Therefore, proton and neutron polarisabilities are identical within error bars. For details and a better list of references, consult the given references.
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