Study of the Decay: Preliminary Results from the ‘‘OKA’’ Experiment
The ( ) is measured with OKA setup at the RF-separated 17.7 GeV/ c momentum kaon beam of the U-70 accelerator. The data corresponds to the flux of ‘‘live’’ kaons entering the decay volume. More than 900 signal events are found in the Particle Data Group (PDG) region of 30–60 MeV energy of the emitte...
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| Veröffentlicht in: | Physics of atomic nuclei 2023-12, Vol.86 (6), p.1315-1321 |
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| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The
(
) is measured with OKA setup at the RF-separated 17.7 GeV/
c
momentum kaon beam of the U-70 accelerator. The data corresponds to the flux of
‘‘live’’ kaons entering the decay volume. More than 900 signal events are found in the Particle Data Group (PDG) region of 30–60 MeV energy of the emitted photon in the rest frame of the decaying kaon. Using
events of normalization decay
(
) the branching ratio
was found to be
. This value can be transformed
from PDG) to
. Our results are preliminary, with systematic errors being estimated. |
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| ISSN: | 1063-7788 1562-692X |
| DOI: | 10.1134/S1063778824010563 |