[Triumf-seminars] TRIUMF Colloquium today at 14:00

[TRIUMF Seminars]

Date/Time: Thu 2020-02-27 at 14:00

Location:  Auditorium          

Speaker:   Luis Orozco (Univ. Maryland)

Title:     Eighty One Years of Francium

Abstract: Francium, discovered eighty one years ago by Marguerite Perey, is the heaviest alkaline atom. She succeeded in a search that started almost 150 years ago with the prediction shortly after the Periodic Table of Elements by Mendeleev of another alkali atom, the ekacaesium. Its isotope of longest half-life lasts only about 20 minutes. The pioneer work at CERN by the team led by Sylvain Lieberman found the basic lines of its atomic spectroscopy. Starting in the mid nineties, the trapping and laser cooling of francium in line with an accelerator has made it available for precision spectroscopy. Its atomic and nuclear structure makes it an ideal laboratory to study weak interaction. This talk is part history to celebrate the anniversary of its discovery and part physics as I will present our proposal, preliminary measurements, and recent progress towards weak interaction studies at TRIUMF by the FrPNC collaboration.

Stimulants available 15 minutes before the talk.

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General TRIUMF seminar information available at http://www.triumf.ca/home/upcoming-events/about-seminars-lectures