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Differential cross sections for elastic scattering of photons from the deuteron have recently been measured at the Tagged-Photon Facility at the MAX IV Laboratory in Lund, Sweden. These first new measurements in more than a decade further constrain the isoscalar electromagnetic polarizabilities of the nucleon and provide the first-ever results above 100 MeV, where the sensitivity to the polarizabilities is increased. We add 23 points between 70 and 112 MeV, at angles 60°, 120°, and 150°. Analysis of these data using a chiral effective field theory indicates that the cross sections are both self-consistent and consistent with previous measurements. Extracted values of αs=[12.1±0.8(stat)±0.2(BSR)±0.8(th)]××10-4fm3 and βs=[2.4±0.8(stat)±0.2(BSR)±0.8(th)]×10-4fm3 are obtained from a fit to these 23 new data points. This paper presents in detail the experimental conditions and the data analysis used to extract the cross sections. [ABSTRACT FROM AUTHOR]

Compton scattering cross sections from 6Li have been measured at scattering angles of 40°-160° using a nearly monoenergetic 60-MeV photon beam at the High Intensity Gamma-Ray Source. A phenomenological model provides an estimate of the sensitivity of the 6Li(y, y)6Li cross section to the nucléon isoscalar electromagnetic polarizabilities αs and βs. [ABSTRACT FROM AUTHOR]