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

High Energy Physics - Experiment 2023-10-31 v1

Abstract

The K+π+π0π0γK^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma decay is observed by the OKA collaboration. The branching ratio is measured to be (4.1±0.9(stat)±0.4(syst))×106(4.1 \pm 0.9(stat) \pm 0.4(syst))\times 10^{-6}. The branching ratio and γ\gamma energy spectrum are consistent with ChPT prediction.

Keywords

Cite

@article{arxiv.2310.19652,
  title  = {Observation of $K^{+} \to \pi^{+}\pi^{0}\pi^{0}\gamma$ decay},
  author = {S. N. Filippov and E. N. Gushchin and A. A. Khudyakov and V. I. Kravtsov and Yu G. Kudenko and A. V. Kulik and A. Yu. Polyarush and A. V. Artamonov and S. V. Donskov and A. P. Filin and A. M. Gorin and A. V. Inyakin and G. V. Khaustov and S. A. Kholodenko and V. N. Kolosov and V. F. Kurshetsov and V. A. Lishin and M. V. Medynsky and V. F. Obraztsov and A. V. Okhotnikov and V. A. Polyakov and V. I. Romanovsky and V. I. Rykalin and A. S. Sadovsky and V. D. Samoylenko and I. S. Tiurin and V. A. Uvarov and O. P. Yushchenko and V. N. Bychkov and G. D. Kekelidze and V. M. Lysan and B. Zh. Zalikhanov},
  journal= {arXiv preprint arXiv:2310.19652},
  year   = {2023}
}

Comments

arXiv admin note: text overlap with arXiv:2310.16429