Search For A Permanent Electric Dipole Moment Using Atomic Indium

Details Search For A Permanent Electric Dipole Moment Using Atomic Indium Search For A Permanent Electric Dipole Moment Using Atomic Indium

2011-10-02

arxiv.org/abs/1110.0154v1

Phys. Rev. A 84, 030502 (2011)

Physics

Atomic Physics

5 pages, 1 fig, Rapid Communication

Scientific paper

10.1103/PhysRevA.84.030502

We propose indium (In) as a possible candidate for observing the permanent electric dipole moment (EDM) arising from the violations of parity (P) and time-reversal (T) symmetries. This atom has been laser cooled and therefore the measurement of its EDM has the potential of improving on the current best EDM limit for a paramagnetic atom which comes from thallium. We report the results of our calculations of the EDM enhancement factor due to the electron EDM and the ratio of the atomic EDM to the electron-nucleus scalar-pseudoscalar (S-PS) interaction coupling constant in In in the framework of the relativistic coupled cluster theory. It might be possible to get new limits for the electron EDM and the S-PS CP violating coupling constant by combining the results of our calculations with the measured value of the EDM of In when it is available. These limits could have important implications for the standard model (SM) of particle physics.

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