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)

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A measurement of the π<sup>+</sup>→e<sup>+</sup>ν branching ratio gives R<sub>πeν</sub>=Γ(π→eν+π→eνγ)/Γ(π→μν+π→μνγ)=1.2265 ± 0.0034(stat) ± 0.0044(sys) ×10<sup>-4</sup>. 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
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

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