Current status of the measurement of the anapole moment

POSTER

Abstract

We present the current status of the experimental effort towards the measurement of the anapole moment in different isotopes of francium. The anapole is a parity-violating, time-reversal conserving nuclear moment that arises from the weak interaction among nucleons. Due to the electromagnetic interaction between electrons and nucleons, atomic physics gives the unique possibility to probe the weak interaction in the low energy regime. Our experimental scheme involves driving a parity forbidden E1 transition between hyperfine ground states in a series of francium isotopes inside a blue detuned dipole trap at the electric antinode of a microwave cavity. The experiment will make use of the ISAC radioactive beam facility at TRIUMF. The system is currently being tested with rubidium.

Authors

  • Dong Sheng

    Joint Quantum Institute and Department of Physics, University of Maryland

  • Adrian Perez Galvan

    Joint Quantum Institute and Department of Physics, University of Maryland

  • Jonathan Hood

    Joint Quantum Institute and Department of Physics, University of Maryland

  • Luis A. Orozco

    University of Maryland--College Park, Joint Quantum Institute and Department of Physics, University of Maryland, Joint Quantum Institute, Department of Physics, University of Maryland, and National Institute of Standards and Technology, College Park, MD, U. S. A.