The neutron spin rotation induced by parity-violating (PV) components in the nucleon-nucleon potential is studied in (n) over right arrow -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 Desplanques-Donoghue-Holstein or pionless effective field theory models 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 (n) over right arrow -p radiative capture, on the strength of this component of the hadronic weak interaction.
|Autori:||Schiavilla R; Viviani M; Girlanda L; Kievsky A; Marcucci L|
|Titolo:||Neutron spin rotation in (n)over-right-arrow-d scattering RID A-7123-2011|
|Anno del prodotto:||2008|
|Digital Object Identifier (DOI):||10.1103/PhysRevC.78.014002|
|Appare nelle tipologie:||1.1 Articolo in rivista|