Investigating Neutron Polarizabilities through Compton Scattering on $^3He$

Details Investigating Neutron Polarizabilities through Compton Scattering on $^3He$ Investigating Neutron Polarizabilities through Compton Scattering on $^3He$

2007-01-26

arxiv.org/abs/nucl-th/0701078v2

Phys.Rev.Lett.98:232303,2007

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures; version published in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.98.232303

We examine manifestations of neutron electromagnetic polarizabilities in coherent Compton scattering from the Helium-3 nucleus. We calculate $\gamma ^3He$ elastic scattering observables using chiral perturbation theory to next-to-leading order (${\mathcal O}(e^2 Q)$). We find that the unpolarized differential cross section can be used to measure neutron electric and magnetic polarizabilities, while two double-polarization observables are sensitive to different linear combinations of the four neutron spin polarizabilities.

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