Abstract
We briefly review the apparent experimental discrepancies that sustain interest in the field of lowenergy few-nucleon parity violation. We argue that it is not possible to determine whether present experimental measurements are consistent unless each is understood in terms of a complete EFT with consistent power counting. Towards this end, we present the EFT that describes very low energy parity violating observables associated with two-nucleon scattering and photon-deuteron interactions.
Highlights
In this talk we will use an effective field theory to explore parity violation (PV) in the two-nucleon system
The standard model of weak interactions contains PV expressed in terms of quarks, weak bosons, etc
These are not the degrees of freedom that are appropriate for understanding PV in few nucleon systems at low energy
Summary
In this talk we will use an effective field theory to explore parity violation (PV) in the two-nucleon system. The standard model of weak interactions contains PV expressed in terms of quarks, weak bosons, etc These are not the degrees of freedom that are appropriate for understanding PV in few nucleon systems at low energy. The nuclear and atomic corrections in the heavier systems may not be under control To address the former issue, a consistent low-energy EFT with defendable power counting was presented in Ref. To address the latter issue may require large-scale computations that respect the appropriate EFT symmetries and power counting
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