Parity-violating nucleon-nucleon interaction from different approaches

Details Parity-violating nucleon-nucleon interaction from different approaches Parity-violating nucleon-nucleon interaction from different approaches

2008-03-14

arxiv.org/abs/0803.2075v1

Phys.Rev.C77:064002,2008

Physics

Nuclear Physics

Nuclear Theory

31 pages

Scientific paper

10.1103/PhysRevC.77.064002

Two-pion exchange parity-violating nucleon-nucleon interactions from recent effective field theories and earlier fully covariant approaches are investigated. The potentials are compared with the idea to obtain better insight on the role of low-energy constants appearing in the effective field theory approach and the convergence of this one in terms of a perturbative series. The results are illustrated by considering the longitudinal asymmetry of polarized protons scattering off protons, $\vec{p}+p -> p+p$, and the asymmetry of the photon emission in radiative capture of polarized neutrons by protons, $\vec{n}+p -> d+\gamma$.

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