Renormalization of chiral nuclear forces with multiple subtractions in peripheral channels

Understand

We analyse the renormalization of the of two-nucleon interaction with multiple subtractions in peripheral waves considering two chiral forces at N3LO.

• Phase shifts at low energies are then computed with several subtraction points below \mu = 10 / fm.
• We show that for most peripheral waves the phase shifts have nearly no dependence on the renormalization scale.
• In two cases the phase shifts converge slowly as the renormalization scale approaches \mu = 1 / fm and in one case the phase shifts presented oscillations with respect to the subtraction point \mu.