title: Relativistic coupled-cluster theory of atomic parity nonconservation: application to 137Ba+.
abstract: We report the result of our ab initio calculation of the 6s2S1/2-->5d2D3/2 parity nonconserving electric dipole transition amplitude in 137Ba+ based on relativistic coupled-cluster theory. Considering single, double, and partial triple excitations, we have achieved an accuracy of less than 1%. If the accuracy of our calculation can be matched by the proposed parity nonconservation experiment in Ba+ for the above transition, then the combination of the two results would provide an independent nonaccelerator test of the standard model of particle physics.
authors.affiliation: NAPP Group, Indian Institute of Astrophysics, Bangalore-34, India. bijaya@iiap.res.in
authors.forename: Bijaya K
authors.initials: BK
authors.lastname: Sahoo
authors.forename: Rajat
authors.initials: R
authors.lastname: Chaudhuri
authors.forename: B P
authors.initials: BP
authors.lastname: Das
authors.forename: Debashis
authors.initials: D
authors.lastname: Mukherjee