Magnetic moments for \(A \le 3\) nuclei from chiral effective field theory
ORAL
Abstract
We present recent no-core shell model (NCSM) calculations of magnetic moments in \(A \le 3\) nuclei with chiral-EFT improved M1 operator and LENPIC interactions. We have derived the M1 operator from chiral-EFT electromagnetic currents up to N2LO in power counting, including two-body pion-exchange terms. We focus the discussion on the corrections that arise from the two-body pion-exchange terms, the convergence with respect to the NCSM basis space parameters, and the impact of coordinate space regulators.
*Supported by US DOE under Award Nos. DE-FG02-87ER40371, DE-FG02-95ER-40934, and DE-SC0018223 (SciDAC-4/NUCLEI). Computational resources provided by NERSC (US DOE Contract No. DE-AC02-05CH11231).
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