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Polyarush, A. Yu; Akimenko, S. A; Artamonov, A. V; Blik, A. M; Burtovoy, V. S; Bychkov, V. N; Donskov, S. V
The European physical journal. C, Particles and fields, 02/2021, Letnik: 81, Številka: 2Journal Article
Results of a study of the Formula omitted decay at OKA setup are presented. More than 32,000 events of this decay are observed. The differential spectra over the photon energy and the photon-electron opening angle in kaon rest frame are presented. The branching ratios, normalized to that of Formula omitted decay are calculated for different cuts on Formula omitted and Formula omitted. In particular, the branching ratio for Formula omitted MeV and Formula omitted is measured R = Formula omitted = = (0.587±0.010(stat.)±0.015(syst.)) Formula omitted, which is in a good agreement with ChPT Formula omitted calculations.
![Study of [Formula omitted] ...](http://api.summon.serialssolutions.com/2.0.0/image/issn/XR4PS5YY4K/1434-6044/medium "Study of [Formula omitted] decay with OKA setup")
