Speaker
Aleksei Garmash
(Budker Institute of Nuclear Physics (BINP))
Description
The large data sample accumulated by the Belle experiment at KEKB
asymmetric energy e^+ e^- collider provides opportunities to study
bottomonia and bottomonium-like exotic particles. In this presentation,
we report recent results on these topics from Belle, including a new
measurement of the e^+e^-\to \Upsilon(nS)\pi^+\pi^- (n=1,2,3) cross
sections at energies from 10.52 to 11.02 GeV, and observation of
ϒ(2S)→γ ηb(1S), ϒ(4S) → η'ϒ(1S) and e+e-→π+π-π0χb1,2(1P).
Author
Aleksei Garmash
(Budker Institute of Nuclear Physics (BINP))
