arXiv · 2310.19652
Observation of $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay
Abstract
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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S. N. Filippov, E. N. Gushchin, A. A. Khudyakov, V. I. Kravtsov, Yu G. Kudenko, A. V. Kulik, A. Yu. Polyarush, A. V. Artamonov, S. V. Donskov, A. P. Filin, A. M. Gorin, A. V. Inyakin, G. V. Khaustov, S. A. Kholodenko, V. N. Kolosov, V. F. Kurshetsov, V. A. Lishin, M. V. Medynsky, V. F. Obraztsov, A. V. Okhotnikov, V. A. Polyakov, V. I. Romanovsky, V. I. Rykalin, A. S. Sadovsky, V. D. Samoylenko, I. S. Tiurin, V. A. Uvarov, O. P. Yushchenko, V. N. Bychkov, G. D. Kekelidze, V. M. Lysan, B. Zh. Zalikhanov. 2023-10-30. Observation of $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay. https://arxiv.org/abs/2310.19652
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