Observation of the decay KL→π0γγ

Observation of the decay KL→π0γγ

The decay mode KL→π0γγ has been observed with a signal of 21 events and an expected background of 1.5±0.9 events. A branching ratio for decays with invariant γγ masses above 280 MeV of (2.1±0.6) X 10-6 is calculated. This result is compared with the values estimated from theoretical models and has i...

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Bibliographic Details
Main Authors: Barr, G, Carosi, R, Coward, D, Cundy, D, Doble, N, Gatignon, L, Gibson, V, Grafström, P, Hagelberg, R, Kesseler, G, Van Der Lans, J, Nelson, H, Wahl, H, Black, R, Candlin, D, Muir, J, Peach, K, Blümer, H, Heinz, R, Kleinknecht, K, Mayer, P, Panzer, B, Renk, B, Rohrer, H, Auge, E
Format: Journal article
Language:English
Published: 1990

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