T-2, Nuclear and Particle Physics, Astrophysics and Cosmology

Advances in coupled-cluster computations of nuclei

Gaute Hagen
Oak Ridge National Lab

In this talk I will present recent highlights in ab initio computations of nuclei using coupled-cluster theory with interactions and currents from chiral effective field theory. The topics I will discuss include: (i) accurate binding energies and radii of light nuclei and medium mass nuclei from a chiral interaction, (ii) the neutron- and weak-charge distributions and electric dipole polarizability of ^{48}Ca, quantities that are currently targeted by precision measurements worldwide. (iii) What are the microscopic origins of the quenching of the axial vector coupling g_A?


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