$Observation of $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay$

Observation of $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay

The $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay is observed by the OKA collaboration. The branching ratio is measured to be $(4.1 \pm 0.9(stat) \pm 0.4(syst))\times 10^{-6}$. The branching ratio and $\gamma$ energy spectrum are consistent with ChPT prediction.

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Hauptverfasser:	Filippov, S. N, Gushchin, E. N, Khudyakov, A. A, Kravtsov, V. I, Kudenko, Yu G, Kulik, A. V, Polyarush, A. Yu, Artamonov, A. V, Donskov, S. V, Filin, A. P, Gorin, A. M, Inyakin, A. V, Khaustov, G. V, Kholodenko, S. A, Kolosov, V. N, Kurshetsov, V. F, Lishin, V. A, Medynsky, M. V, Obraztsov, V. F, Okhotnikov, A. V, Polyakov, V. A, Romanovsky, V. I, Rykalin, V. I, Sadovsky, A. S, Samoylenko, V. D, Tiurin, I. S, Uvarov, V. A, Yushchenko, O. P, Bychkov, V. N, Kekelidze, G. D, Lysan, V. M, Zalikhanov, B. Zh
Format:	Artikel
Sprache:	eng
Schlagworte:	Physics - High Energy Physics - Experiment
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Beschreibung
Zusammenfassung:	The $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay is observed by the OKA collaboration. The branching ratio is measured to be $(4.1 \pm 0.9(stat) \pm 0.4(syst))\times 10^{-6}$. The branching ratio and $\gamma$ energy spectrum are consistent with ChPT prediction.
DOI:	10.48550/arxiv.2310.19652