Parity-violating asymmetry in $\gamma d\to \vec{n}p$ with a pionless effective theory

Abstract

Nuclear parity violation is studied with polarized neutrons in the photodisintegration of the deuteron at low energies. A pionless effective field theory with di-baryon fields is used for the investigation. Hadronic weak interactions are treated by parity-violating di-baryon-nucleon-nucleon vertices, which have undetermined coupling contants. A parity-violating asymmetry in the process is calculated for the incident photon energy up to 30 MeV. If experimental data for the parity-violating asymmetry become available in the future, we will be able to determine the unknown coupling contants in the parity-violating vertices.

4 pages. A contribution to APFB2011, August 22-26, 2011, Seoul, Korea

References in corpus (5)

• An effective-field-theory analysis of low-energy parity-violation in nucleon-nucleon scattering
• Proton-proton fusion in pionless effective theory
• Hadronic parity violation in $\vec{n}p\to d\gamma$ with effective field theory
• Spin Polarization in $\gamma d\to \vec{n}p$ at Low Energies with a Pionless Effective Field Theory
• Hadronic weak interaction in the two-nucleon system with effective field theories

Cited by in corpus (2)

• Neutrino-Deuteron Reactions at Solar Neutrino Energies in Pionless Effective Field Theory with Dibaryon Fields
• New Photodisintegration Model of GEANT4 for the $d\gamma \to np$ Reaction with a Dibaryon Effective Field Theory