Recently developed chiral nucleon-nucleon (NN) forces at next-to-leading or
der (NLO), that describe NN phase shifts up to about 100 MeV fairly well, h
ave been applied to 3N and 4N systems. Faddeev-Yakubovsky equations have be
en solved rigorously. The resulting 3N and 4N binding energies are in the s
ame range as found using standard NN potentials. In addition, low-energy 3N
scattering observables are very well reproduced as for standard NN forces.
The long-standing A,, puzzle is absent at NLO. The cutoff dependence of th
e scattering observables is rather weak.