Parity violation in neutron capture on the proton: determining the weak pion-nucleon coupling

Abstract

We investigate the parity-violating analyzing power in neutron capture on the proton at thermal energies in the framework of chiral effective field theory. By combining this analysis with a previous analysis of parity violation in proton-proton scattering, we are able to extract the size of the weak pion-nucleon coupling constant. The uncertainty is significant and dominated by the experimental error which is expected to be reduced soon.

arXiv commentPublished version

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Cited by in corpus (12)

• Radiative bound-state-formation cross-sections for dark matter interacting via a Yukawa potential
• Power Counting and Wilsonian Renormalization in Nuclear Effective Field Theory
• First Observation of $P$-odd $\gamma$ Asymmetry in Polarized Neutron Capture on Hydrogen
• A New Paradigm for Hadronic Parity Nonconservation and its Experimental Implications
• Violations of discrete space-time symmetries in chiral effective field theory
• Parity- and time-reversal-violating nuclear forces
• The long and winding road from chiral effective Lagrangians to nuclear structure
• Effective Field Theory in The Study of Long Range Nuclear Parity Violation on Lattice
• Novel Soft-Pion Theorem for Long-Range Nuclear Parity Violation
• QCD Analysis of $\Delta S=0$ Hadronic Parity Violation
• Towards a unified treatment of $\Delta S=0$ parity violation in low-energy nuclear processes
• $\Delta S=0$ Hadronic Parity Violation in Next-to-Leading Order QCD: Anomalous Dimension Matrices and Their Implications