Novel approach to measure the leptonic eta(')->mu+mu- decays via charmed meson decays

Abstract

In this article, we propose a novel approach to measure the branching ratios of the leptonic eta(')-> mu+mu- decays by using charmed meson decays, namely, D+(s)->pi+ eta(')(->mu+mu-) and D0->K-pi+eta(')(->mu+mu-). We advocate that the data available at LHCb can already yield a new measurement of Br(eta->mu+mu-) with accuracy competitive with the current world average. We also estimate that using the data collected by LHCb between 2015 and 2018 in proton-proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.0/fb, the relative uncertainties to this branching ratio can be reduced down to ~10%. We also show that the first observation of Br(eta'->mu+mu-) may be possible with the Upgrade of the LHCb experiment.

arXiv comment12 pages, 3 figures

References in corpus (12)

• Decay of pseudoscalars into lepton pairs and large-Nc QCD
• Hadronic Light-by-Light Contribution to Muon g-2 in Chiral Perturbation Theory
• Flavor & new physics opportunities with rare charm decays into leptons
• Measurement of the rare decay pi0 -> e+ e-
• On the precision of a data-driven estimate of hadronic light-by-light scattering in the muon g-2: pseudoscalar-pole contribution
• Standard Model prediction and new physics tests for D0 -> h+h-l+l- (h=π,K; l=e,μ)
• Search for D+(s) to pi+ mu+ mu- and D+(s) to pi- mu+ mu+ decays
• The Rare Decays $\piee$, $\etaee$ and \etamumu$ in Chiral Perturbation Theory
• Rare decay ${\pi }^0\to e^{+}{e}^{-}$: on corrections beyond the leading order
• Two-loop QED radiative corrections to the decay pi0 -> e+ e- : The virtual corrections and soft-photon bremsstrahlung
• First observation of the decay $D^0\to K^{-}{\pi }^{+}{\mu }^{+}{\mu }^{-}$ in the ${\rho }^0$-$\omega$ region of the dimuon mass spectrum
• Single pion contribution to the hyperfine splitting in muonic hydrogen

Cited by in corpus (2)

• Pseudoscalar-pole contribution to the $(g_{\mu }-2)$: a rational approach
• First observation of the decay $D^0\to K^{-}{\pi }^{+}{\mu }^{+}{\mu }^{-}$ in the ${\rho }^0$-$\omega$ region of the dimuon mass spectrum