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.

*Work supported by NSERC and NRC from Canada, NSF and DOE from USA, CONACYT from Mexico.

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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