2-7 June 2019
Simon Fraser University
America/Vancouver timezone
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Towards measuring atomic parity violation effects in francium

3 Jun 2019, 13:15
HC 114 (Simon Fraser University)

HC 114

Simon Fraser University

Invited Speaker / Conférencier(ère) invité(e) Nuclear Physics / Physique nucléaire (DNP-DPN) M2-2 Fundamental Symmetries (DNP) | Symétries fondamentales (DPN)


Mukut Ranjan Kalita (TRIUMF)


Measurements of parity violation effects in atomic systems test the Standard Model at low energies and probe nucleon-nucleon interaction. Francium is a good system for atomic parity violation (APV) studies, because APV effects are predicted to be large in francium and its atomic structure is favourable for theoretical calculations. We are developing experiments to study APV effects in neutral francium atoms at the ISAC radioactive beam facility at TRIUMF. We use techniques of laser cooling and trapping to prepare the atoms for our measurements. Our current effort is based on optical spectroscopy of the electric dipole forbidden 7s-8s atomic transition aiming at the test of the strength of the electron-quark weak neutral coupling. In this talk, I will present our recent observation of the Stark (electric field) induced 7s-8s transition and our roadmap towards observing APV.

Operational funding by NSERC, NRC/TRIUMF, infrastructure support by DOE and NRC/TRIUMF, student support by U. of Manitoba, and travel support by CONACYT and Fullbright.

Primary author

Mukut Ranjan Kalita (TRIUMF)

Presentation Materials