The Lifetimes of the π+ and π Mesons

R. P. Durbin, H. H. Loar, and W. W. Havens, Jr.
Phys. Rev. 88, 179 – Published 15 October 1952
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Abstract

The mean lives of the π+ and π mesons are determined by measurements of the attenuation in flight of a 73-Mev meson beam, using a scintillation counter telescope of variable length. The decay scheme, π±μ±+ν, is assumed to be isotropic in the rest system of the π-meson. The data, when the Lorentz time dilation is taken into account, give for the mean lives at rest {τ=(2.55±0.19)×108 sec,}{τ+=(2.44±0.18)×108 sec.}

  • Received 25 June 1952

DOI:https://doi.org/10.1103/PhysRev.88.179

©1952 American Physical Society

Authors & Affiliations

R. P. Durbin, H. H. Loar, and W. W. Havens, Jr.

  • Columbia University, New York, New York

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Issue

Vol. 88, Iss. 2 — October 1952

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