Phys. Rev. Lett. 33, 14001403 (1974); DOI: 10.1103/PhysRevLett.33.1400

Decay Width of the Neutral Pi Meson

A. Browman, J. DeWire, B. Gittleman, K. M. Hanson, D. Larson, and E. Loh
Cornell University

Abstract

The cross section for the photoproduction of pi-zero mesons from complex nuclei at small angles has been measured at incident bremsstrahlung energies of 4.4 and 6.6 GeV. The data are fitted by a cross section calculated from a sum of Primakoff and nuclear-production amplitudes. A total decay width for the pi-zero meson of 8.020.42 eV is obtained from the magnitude of the Primakoff amplitude.

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