Evidence of $h_b(\text{2P})\to {\rm Y}(\text{1S})\eta$ decay and search for $h_b(\text{1P,2P})\to {\rm Y}(\text{1S}){\pi }^0$ with the Belle detector

Belle Collaboration, E. Kovalenko, I. Adachi +164

We report the first evidence for the $h_b(\text{2P})\to {\rm Y}(\text{1S})\eta$ transition with a significance of $3.5$ standard deviations. The decay branching fraction is measured to b…