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Song, Young-Ho,Lazauskas, Rimantas,van Kolck, U. American Physical Society 2017 Physical Review C Vol.96 No.2
<P>Determination of the proper power-counting scheme is an important issue for the systematic application of Chiral Effective Field Theory in nuclear physics. We analyze the cutoff dependence of three-nucleon observables (the neutron-deuteron scattering lengths and the triton binding energy) at the leading and next-to-leading orders of a power counting that ensures order-by-order renormalization in the two-nucleon system. Our results confirm that, as usually assumed in the literature, three-body forces are not needed for renormalization of the three-nucleon system up to next-to-leading order.</P>
Time reversal invariance violating and parity conserving effects in proton-deuteron scattering
Song, Young-Ho,Lazauskas, Rimantas,Gudkov, Vladimir American Physical Society 2016 Physical Review C Vol.93 No.6
<P>Time reversal invariance violating parity conserving (TVPC) effects are calculated for elastic proton-deuteron scattering with proton energies up to 2 MeV. The distorted-wave Born approximation is employed to estimate TVPC matrix elements, based on hadronic wave functions, obtained by solving three-body Faddeev-Merkuriev equations in configuration space with realistic potentials.</P>
Effective field theory approach for the M1 properties of A=2 and 3 nuclei
Song, Y.H.,Lazauskas, R.,Park, T.S.,Min, D.P. North-Holland Pub. Co 2007 Physics letters. Section B Vol.656 No.4-5
The magnetic moments of <SUP>2</SUP>H, <SUP>3</SUP>He and <SUP>3</SUP>H as well as the thermal neutron capture rate on the proton are calculated using heavy baryon chiral perturbation theory a la Weinberg. The M1 operators have been derived up to N<SUP>3</SUP>LO. The nuclear matrix elements are evaluated with the use of wave functions obtained by carrying out variational Monte Carlo calculations for a realistic nuclear Hamiltonian involving high-precision phenomenological potentials like Argonne Av18 and Urbana IX tri-nucleon interactions. We discuss the potential- and cutoff-dependence of the results.