Phys. Rev. Lett. 32, 10671070 (1974); DOI: 10.1103/PhysRevLett.32.1067

Radiative Width of the Eta Meson

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

Abstract

The cross section for the photoproduction of eta mesons by the Primakoff process has been measured at bremsstrahlung energies of 5.8, 9.0, and 11.45 GeV. A value of 0.324 0.046 keV was obtained for the partial width of the eta meson decaying into photon pairs. This result is a factor of 3 lower than the previously accepted value.

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