English

The upper limit on the $K^+ \to \pi^0\pi^0\pi^0e^+\nu$ decay

High Energy Physics - Experiment 2024-09-16 v1

Abstract

A search for the K+π0π0π0e+νK^{+} \to \pi^{0}\pi^{0}\pi^{0}e^+\nu decay is performed by the OKA collaboration. The search is based on 3.65×109 K+3.65 \times 10^9 ~ K^+ decays. No signal is observed. The upper limit set is BR(K+π0π0π0e+ν)<5.4×108 90%BR(K^{+} \to \pi^{0}\pi^{0}\pi^{0}e^+\nu) < 5.4\times 10^{-8} ~ 90\% CL, 65 times lower than the one currently listed by PDG.

Keywords

Cite

@article{arxiv.2409.08817,
  title  = {The upper limit on the $K^+ \to \pi^0\pi^0\pi^0e^+\nu$ decay},
  author = {A. V. Kulik and S. N. Filippov and E. N. Gushchin and A. A. Khudyakov and V. I. Kravtsov and Yu. G. Kudenko 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 A. K. Konoplyannikov 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},
  journal= {arXiv preprint arXiv:2409.08817},
  year   = {2024}
}