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Chiral symmetry and the parity-violating NN pi Yukawa coupling
Lagrange differential pv coupling constant the standard model
2014/12/22
We construct the complete SU(2) parity-violating (PV) π,N,Δ interaction Lagrangian with one derivative, and calculate the chiral corrections to the PV Yukawa NNπ coupling constant hπ through O(1/Λχ3) ...
Subleading corrections to parity-violating pion photoproduction
Light photons meson photovoltaic coupling
2014/12/22
We compute the photon asymmetry Bγ for near threshold parity-violating (PV) pion photoproduction through subleading order. We show that subleading contributions involve a new combination of PV couplin...
Gamma-Z box contributions to parity violating elastic e-p scattering
Gamma-Z box contributions parity violating elastic e-p scattering
2011/1/7
Parity-violating (PV) elastic electron-proton scattering measures Q-weak for the proton, QpW
. To extract QpW from data, all radiative corrections must be well-known. Recently, disagreement on the gZ...