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arXiv · hep-ex/9907004

Upper limit on the Ks ---> 3 pi0 decay

M. N. Achasov·V. M. Aulchenko·A. V. Berdyugin·A. V. Bozhenok·A. D. Bukin·D. A. Bukin·S. V. Burdin·T. V. Dimova·V. P. Druzhinin·M. S. Dubrovin·I. A. Gaponenko·V. B. Golubev·V. N. Ivanchenko·I. A. Koop·A. A. Korol·S. V. Koshuba·I. N. Nesterenko·E. V. Pakhtusova·A. A. Salnikov·S. I. Serednyakov·V. V. Shary·Yu. M. Shatunov·V. A. Sidorov·Z. K. Silagadze·Yu. V. Usov
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Abstract

The search for CP-violating K_S\to3π^0 decay was performed with SND detector at VEPP-2M e^+e^- collider. The total amount of data corresponding to 7 million produced K_S mesons was analyzed. No candidate events were found, giving an upper limit of the decay branching ratio: Br(K_S\to3π^0) < 1.4\cdot10^{-5} at 90% confidence level.

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M. N. Achasov, V. M. Aulchenko, A. V. Berdyugin, A. V. Bozhenok, A. D. Bukin, D. A. Bukin, S. V. Burdin, T. V. Dimova, V. P. Druzhinin, M. S. Dubrovin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, I. A. Koop, A. A. Korol, S. V. Koshuba, I. N. Nesterenko, E. V. Pakhtusova, A. A. Salnikov, S. I. Serednyakov, V. V. Shary, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, Yu. V. Usov. 1999-07-07. Upper limit on the Ks ---> 3 pi0 decay. https://doi.org/10.1016/s0370-2693(99)00737-6

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