A search for decay ${\eta }^{\prime }\to 4{\pi }^0$ with GAMS-$4\pi$ Setup

S. V. Donskov, V. N. Kolosov, A. A. Lednev +4

A search for rare decay ${\eta }^{\prime }\to 4{\pi }^0$ has been performed with GAMS-4$\pi$ Setup. The new upper limit for decay was established $BR(η' \rightarrow 4 π^{0}) < 3.2 \cdot 10^{…