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X → 2γ from π p → neutral meson + neuron at 3.8 GeV/c |
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| Authors: | W. D. Apel J. Ausl nder H. Mü ller G. Sigurdsson H. M. Staudenmaier E. Bertolucci I. Mannelli G. Pierazzini P. Reh k A. Scribano F. Sergiampietri M. L. Vincelli |
| Affiliation: | Institut für Experimentelle Kernphysik der Universität und Kernforschungszentrum, Karlsruhe, Germany Instituto di Fisica dell' Università di Pisa and INFN, Sezione di Pisa, Italy |
| Abstract: | We report on a measurement for the branching-ratio X0 → 2γ/X0 ar all. Our result is X0 → 2γ/X0 → all = (2.9 ± 0.9)%. |
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