1301.6134 (E. Epelbaum et al.)

The two-nucleon problem in EFT reformulated: Pion and nucleon masses as
soft and hard scales    [PDF]

E. Epelbaum, J. Gegelia

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 $^1S_0$ and $^3S_1$ scattering lengths and the deuteron binding energy at leading order.

View original: http://arxiv.org/abs/1301.6134