Erratum: Investigating Neutron Polarizabilities through Compton Scattering on ^{3}He [Phys. Rev. Lett. 98, 232303 (2007)].

This corrects the article DOI: 10.1103/PhysRevLett.98.

Parity-violating nucleon-nucleon force in the 1/N(c) expansion.

Several experimental investigations have observed parity violation (PV) in nuclear systems-a consequence of the weak force between quarks. We apply the 1/N(c) expansion of QCD to the P-violating T-conserving component of the nucleon-nucleon (NN) potential. We show there are two leading-order operators, both of which affect p[over →]p scattering at order N(c).

Investigating neutron polarizabilities through Compton scattering on 3He.

We examine manifestations of neutron electromagnetic polarizabilities in coherent Compton scattering from the helium-3 nucleus. We calculate gamma3He elastic scattering observables using chiral perturbation theory to next-to-leading order [O(e2Q)]. 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.