Parity Nonconservation in the Photodisintegration of the Deuteron at Low Energy

Abstract

The parity-nonconserving asymmetry in the deuteron photodisintegration, $\vec{\gamma }+d\to n+p$, is considered with the photon energy ranged up to 10 MeV above the threshold. The aim is to improve upon a schematic estimate assuming the absence of tensor as well as spin-orbit forces in the nucleon-nucleon interaction. The major contributions are due to the vector-meson exchanges, and the strong suppression of the pion-exchange contribution is confirmed. A simple argument, going beyond the observation of an algebraic cancellation, is presented. Contributions of meson-exchange currents are also considered, but found to be less significant.

arXiv comment12 pages, 6 figures, typeset by REVTeX (two-column format) and BIBTeX

References in corpus (8)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Intermediate-Energy Semileptonic Probes of the Hadronic Neutral Current
• Parity-violating Electron Deuteron Scattering and the Proton's Neutral Weak Axial Vector Form Factor
• Parity Violation in Proton-Proton Scattering at 221 MeV
• Conformal mechanics on rotating Bertotti-Robinson spacetime
• Hadronic Parity Violation and Inelastic Electron-Deuteron Scattering
• Parity Nonconservation in the Deuteron Photodisintegration
• Deuteron Anapole Moment with Heavy Mesons

Cited by in corpus (10)

• Hadronic Parity Violation: a New View through the Looking Glass
• Parity-Violating Observables of Two-Nucleon Systems in Effective Field Theory
• The Theory of Parity Violation in Few-Nucleon Systems
• Parity-violating polarization in $np\to d\gamma$ with a pionless effective field theory
• Energy dependence of the parity-violating asymmetry of circularly polarized photons in $d\vec{\gamma }\to np$ in pionless effective field theory
• Parity non-conservation in nuclear excitation by circularly polarized photon beam
• Parity Nonconservation in Elastic $\vec{p}p$ Scattering
• Polarization of the neutron induced from hadronic weak interactions in the photo-disintegration of the deuteron
• Parity nonconservation in deuteron photoreactions
• Parity violation in nuclear systems