[Triumf-seminars] This week's colloquium speaker Gerald Miller

[TRIUMF Seminars]

Dear TRIUMF Seminars Subscriber,

This week's TRIUMF Colloquium, entitled "The Proton Radius Puzzle: A Challenge to all of us," will be delivered by Gerald Miller of the University of Washington on Thursday at 14:00 in the auditorium. His abstract is appended below. Prof. Miller will be here on Thursday throughout the day. If you would like to meet with him individually or in a group, or have dinner with him on Thursday evening, please send an email to davids at triumf.ca with your preferred time(s).

Thanks,

Barry

Abstract

"The extremely precise extraction of the proton radius by Pohl et al. from the measured energy difference between the 2P and 2S states of muonic hydrogen disagrees significantly with that extracted from electronic hydrogen or elastic electron-proton scattering. This is the proton radius puzzle. The origins of the puzzle and the reasons for believing it to be very significant are explained. Various possible solutions of the puzzle are identified, and the future work needed to resolve the puzzle is discussed."

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