2-7 June 2019
Simon Fraser University
America/Vancouver timezone
Welcome to the 2019 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2019 !

Precise Measurement of Rare Pion Decay

6 Jun 2019, 14:30
DAC FT II (Simon Fraser University)


Simon Fraser University

Oral (Non-Student) / Orale (non-étudiant(e)) Particle Physics / Physique des particules (PPD) R2-10 Neutrinos and more (PPD) | Neutrinos et davantage (PPD)


Dr Tristan Sullivan (Queen's University)


The rare decay of the pion, to an electron and a neutrino, is an
important process in the Standard Model. The branching ratio of this
decay is one of the most precisely calculated weak interaction observ-
ables involving quarks. Measurement of the branching ratio provides
a sensitive test of lepton universality and tight constraints on many
new physics scenarios with mass reach up to 1000 TeV. The PIENU
experiment at TRIUMF aims to measure the branching ratio to a
precision of less than 0.1%. The status of the analysis, and prospects
for achieving the precision goal, will be presented. A secondary re-
sult, placing limits on the mixing of the muon neutrino with a heavy
neutrino, will be presented as well.

Primary author

Dr Tristan Sullivan (Queen's University)

Presentation Materials