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Elastic Compton scattering from the deuteron and nucleon polarizabilities

D. L. Hornidge·B. J. Warkentin·R. Igarashi·J. C. Bergstrom·E. L. Hallin·N. R. Kolb·R. E. Pywell·D. M. Skopik·J. M. Vogt
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Abstract

Cross sections for elastic Compton scattering from the deuteron were measured over the laboratory angles 35-150 deg. Tagged photons in the laboratory energy range 84-105 MeV were scattered from liquid deuterium and detected in the large-volume Boston University NaI (BUNI) spectrometer. Using the calculations of Levchuk and L'vov, along with the measured differential cross sections, the isospin-averaged nucleon polarizabilities in the deuteron were estimated. A best-fit value of (alpha-beta) = 2.6+/-1.8 was determined, constrained by dispersion sum rules. This is markedly different from the accepted value for the proton of (alpha-beta) = 10.0+/-1.5+/-0.9.

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D. L. Hornidge, B. J. Warkentin, R. Igarashi, J. C. Bergstrom, E. L. Hallin, N. R. Kolb, R. E. Pywell, D. M. Skopik, J. M. Vogt. 2000-02-11. Elastic Compton scattering from the deuteron and nucleon polarizabilities. https://doi.org/10.1103/physrevlett.84.2334

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