The two-nucleon problem in EFT reformulated: Pion and nucleon masses as soft and hard scales
Abstract
We outline the modified formulation of baryon chiral effective field theory for nucleon-nucleon scattering and discuss the issue of a possible power counting violation by the nucleon mass. We also present the results for the quark mass dependence of the 1S0 and 3S1 scattering lengths and the deuteron binding energy at leading order.
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