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25–30 Sept 2017
Uppsala University Main Building
Europe/Stockholm timezone

A proposal of a New Charged Lepton Flavor Violation Experiment: μ− e− → e− e− in muonic atom

29 Sept 2017, 12:10
20m
Room IV (Uppsala University Main Building)

Room IV

Uppsala University Main Building

Biskopsgatan 3, Uppsala
talk Working Group 4: Muon Physics WG4: Muon physics

Speaker

Joe Sato (Saitama University)

Description

We propose a new process of μ− e− → e− e− in a muonic atom for a quest of charged lepton flavor violation. The Coulomb attraction from the nucleus in a heavy muonic atom leads to significant enhancement in its rate, compared to μ+ e− → e+ e−. The search for this process could serve complementarily with the other relevant processes to shed light upon the nature of charged lepton flavor violation. The wave functions of bound and scattering state leptons are properly treated by solving Dirac equations with Coulomb interaction of the finite nuclear charge distributions. This new effect contributes significantly in particular for heavier atoms, where the obtained decay rate is about one order of magnitude larger than the previous estimation for 208 Pb in particular for contact interactions. We also discuss how to observe the differences among interaction types. It is based on the works arXiv:1003.1578(PRL 105(2010) 121601), arXiv:1603.01522 (PRD93 (2016) no.7, 076006) and work in progress.

Primary author

Joe Sato (Saitama University)

Co-author

Dr Masato Yamanaka (Maskawa Institute)

Presentation materials