Observation of the decay KL→π0γγ
Copyright policy ) G.D. Barr; R. Carosi; D. Coward; D. Cundy; N. Doble; L. Gatignon; V. Gibson; P. Grafström; R. Hagelberg; G. Kesseler; J. Van Der Lans; H.N. Nelson; H. Wahl; R. Black; D.J. Candlin; J. Muir; K.J. Peach; H. Blümer; R. Heinz; K. Kleinknecht; P. Mayer; B. Panzer; B. Renk; H. Rohrer; E. Augé; D. Fournier; P. Heusse; L. Iconomidou-Fayard; I. Harrus; A.M. Lutz; O. Perdereau; A.C. Schaffer; L. Serin; L. Bertanza; A. Bigi; P. Calafiura; M. Calvetti; R. Casali; C. Cerri; R. Fantechi; I. Mannelli; A. Nappi; G.M. Pierazzini; H. Burkhardt; M. Holder; A. Kreutz; G. Quast; M. Rost; H.G. Sander; W. Weihs; R. Werthenbach; G. Zech;
Observation of the decay KL→π0γγ
Abstract The decay mode K L → π 0 γγ 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)×10 −6 is calculated. This result is compared with the values estimated from theoretical models and has implications for the CP conserving contribution to K L → π 0 e + e − decay.
United Kingdom
- Folkwang University of the Arts Germany
- University of Oxford United Kingdom
- Johannes Gutenberg University of Mainz Germany
- European Organization for Nuclear Research Switzerland
- University of Edinburgh United Kingdom
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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