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Observation of eta. --> pi. /sup 0/. gamma gamma. decay

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6297451
Experiments in which the rare radiative decay eta..--> pi../sup 0/..gamma gamma.. was observed and investigated are described. The measurements were made on the 70-GeV IHEP accelerator with the aid of the GAMS-2000 hodoscopic spectrometer having a decaying-particle mass resolution on the order of a percent. The branching ratio is found to be BR (eta..--> pi../sup 0/..gamma gamma..) = (9.5 +- 2.3) x 10/sup -4/.
Research Organization:
Collaboration of IHEP, IUSN, and LPPA
OSTI ID:
6297451
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 36:3; ISSN SJNCA
Country of Publication:
United States
Language:
English

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