Proposal for testing lepton universality in Upsilon decays at a B-factory running at ${\rm Y}(3S)$

Abstract

We present a proposal for detecting new physics at a B-factory running at the ${\rm Y}(3S)$ resonance by testing lepton universality to the few percent level in the leptonic decays of the ${\rm Y}(1S)$ and ${\rm Y}(2S)$ resonances tagged by the dipion in the chain decay: ${\rm Y}(3S)\to p{i}^{+}{\pi }^{-}{\rm Y}(1S,2S)$; ${\rm Y}(1S,2S)\to {\ell }^{+}{\ell }^{-}$, $\ell =e,\mu ,\tau$.

10 pages, 2 figures, Contributed paper to BNM2006 Workshop, September 13-14, 2006, KEK

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Cited by in corpus (10)

• Hunting a light CP-odd non-standard Higgs boson through its tauonic decay at a (Super) B factory
• Radiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM
• Decays of a NMSSM CP-odd Higgs in the low-mass region
• ${\rm Y}$ and $\psi$ leptonic decays as probes of solutions to the $R_D^{(\ast )}$ puzzle
• Spectroscopy, leptonic decays and the nature of heavy quarkonia
• Updated constraints from radiative ${\rm Y}$ decays on a light CP-odd Higgs
• Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta)
• ${\rm Y}\to \gamma A_1$ in the NMSSM at large tan beta
• Reduced branching ratio for H -> AA -> 4 tau from A - eta_b mixing
• A light non-standard Higgs boson: to be or not to be at a (Super) B factory?