Radiative and non radiative muon capture on the proton in heavy baryon chiral perturbation theory

الأصل · EN

We have evaluated the amplitude for muon capture by a proton, mu + p --> n + nu, to O(p³) within the context of heavy baryon chiral perturbation theory (HBChPT) using the new O(p³) Lagrangian of Ecker and Mojzis (E&M). We obtain expressions for the standard muon capture form factors and determine three of the coefficients of the E&M Lagrangian, namely, b₇, b₁₉, and b₂₃. We describe progress on the next step, a calculation of the radiative muon capture process, mu + p --> n + nu + gamma.