Proposal for testing lepton universality in Upsilon decays at a B-factory running at Υ(3S)
Miguel-Angel Sanchis-Lozano
Abstract
We present a proposal for detecting new physics at a B-factory running at the Υ(3S) resonance by testing lepton universality to the few percent level in the leptonic decays of the Υ(1S) and Υ(2S) resonances tagged by the dipion in the chain decay: Υ(3S) pi+π-Υ(1S,2S); Υ(1S,2S) +-, =e,μ,τ.
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