A search is performed for rare and forbidden charm decays of the form D(s)+→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude. [Figure not available: see fulltext.]

Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Searches for 25 rare and forbidden decays of D + and Ds+ mesons. JOURNAL OF HIGH ENERGY PHYSICS, 2021(6) [10.1007/JHEP06(2021)044].

Searches for 25 rare and forbidden decays of D + and Ds+ mesons

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Gotti C.;Martinazzoli L.;Martinelli M.;Petruzzo M.;Shields E. B.;
2021

Abstract

A search is performed for rare and forbidden charm decays of the form D(s)+→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude. [Figure not available: see fulltext.]
Articolo in rivista - Articolo scientifico
Charm physics; Flavour Changing Neutral Currents; Flavour physics; Hadron-Hadron scattering (experiments); Rare decay
English
2021
2021
6
44
none
Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2021). Searches for 25 rare and forbidden decays of D + and Ds+ mesons. JOURNAL OF HIGH ENERGY PHYSICS, 2021(6) [10.1007/JHEP06(2021)044].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/399772
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