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arXiv · 0805.3599

Neutron spin rotation in \vec{n}-d scattering

R. Schiavilla·M. Viviani·L. Girlanda·A. Kievsky·L. E. Marcucci
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Abstract

The neutron spin rotation induced by parity-violating (PV) components in the nucleon-nucleon potential is studied in \vec{n}-d scattering at zero energy. Results are obtained corresponding to the Argonne v_{18} two-nucleon and Urbana-IX three-nucleon strong-interaction potentials in combination with either the DDH or pionless EFT model for the weak-interaction potential. We find that this observable is dominated by the contribution of the long-range part of the PV potential associated with pion exchange. Thus its measurement could provide a further constraint, complementary to that coming from measurements of the photon asymmetry in \vec{n}-p radiative capture, on the strength of this component of the hadronic weak interaction.

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R. Schiavilla, M. Viviani, L. Girlanda, A. Kievsky, L. E. Marcucci. 2008-05-23. Neutron spin rotation in \vec{n}-d scattering. https://doi.org/10.1103/physrevc.78.014002%2010.1103%2Fphysrevc.83.029902

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