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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

Published 1999-07-07Version 1

The search for CP-violating K_S\to3\pi^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\to3\pi^0) < 1.4\cdot10^{-5} at 90% confidence level.

Comments: 6 pages, 4 figures, to be published in Physics Letters B
Journal: Phys.Lett.B459:674-678,1999
Categories: hep-ex
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