Measurement of the π⁺→e⁺ν branching ratio

Britton, D. et al. (1994) Measurement of the π⁺→e⁺ν branching ratio. Physical Review D, 49(1), pp. 28-39. (doi: 10.1103/PhysRevD.49.28)

Abstract

A measurement of the π⁺→e⁺ν branching ratio gives R_πeν=Γ(π→eν+π→eνγ)/Γ(π→μν+π→μνγ)=1.2265 ± 0.0034(stat) ± 0.0044(sys) ×10^-4. This result is in agreement with standard model calculations and confirms the hypothesis of electron-muon universality at the 0.2% level.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Britton, Professor David
• Authors: Britton, D., Ahmad, S., Bryman, D., Burnham, R., Clifford, E., Kitching, P., Kuno, Y., Macdonald, J., Numao, T., Olin, A., Poutissou, J.-M., and Dixit, M.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review D
• Publisher: American Physical Society
• ISSN: 1550-7998