Spectroscopy of Francium, recent developments at TRIUMF

ORAL

Abstract

We present the current results of our program of precision spectroscopy on Francium using the recently commissioned Francium Trapping Facility at TRIUMF during two runs. The measurements include $7P_{1/2}$ state hyperfine splitting of isotopes $^{206-213, 221}$Fr as well as isotope shift measurements on the $7S_{1/2} \rightarrow 7P1_{1/2}$ ($D1$) transition. The statistical and systematic errors are small enough that measurements can provide information needed to understand future work on weak interaction physics using microwave and optical excitation of parity non conserving transitions.

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Authors

  • J. Zhang

    JQI, Physics, UMD and NIST, College Park, MD 20742, USA

  • Luis Orozco

    JQI, Physics, UMD and NIST, College Park, MD 20742, USA, JQI, Physics, University of Maryland, College Park, MS 20742

  • R. Collister

    Physics, University of Manitoba, Winnipeg, MB R3T 2N2, Canada

  • G. Gwinner

    Physics, University of Manitoba, Winnipeg, MB R3T 2N2, Canada

  • M. Tandecki

    TRIUMF, Vancouver, BC V6T 2A3, Canada

  • J.A. Behr

    TRIUMF, Vancouver, BC V6T 2A3, Canada

  • M.R. Pearson

    TRIUMF, Vancouver, BC V6T 2A3, Canada

  • E. Gomez

    Instituto de Fisica, UASLP, San Luis Potosi 78290, Mexico

  • Seth Aubin

    Physics, College of William and Mary, Williamsburg, VA 23197, USA, College of William \& Mary, College of William and Mary