A search for K0SðLÞ → πþπ−μþμ− decays is performed using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. No K0SðLÞ → πþπ−μþμ− signals are found and upper limits are set for the first time on the branching fractions BðK0S → πþπ−μþμ−Þ < 1.4 × 10−9 and BðK0L → πþπ−μþμ−Þ < 6.6 × 10−7, at the 90% confidence level.

Aaij, R., W. Abdelmotteleb A., S., Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A., et al. (2026). Search for K0SðLÞ → π+π−μ+μ− decays at LHCb. PHYSICAL REVIEW D, 113(7) [10.1103/S1DV-CV1T].

Search for K0SðLÞ → π+π−μ+μ− decays at LHCb

Anelli A.;Borsato M.;Calvi M.;Capelli S.;Carniti P.;Falcao L. N.;Fazzini D.;Gotti C.;Kirsebom V. S.;Malentacca L.;Martinazzoli L.;Martinelli M.;Minotti A.;Pizzichemi M.;Salomoni M.;
2026

Abstract

A search for K0SðLÞ → πþπ−μþμ− decays is performed using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. No K0SðLÞ → πþπ−μþμ− signals are found and upper limits are set for the first time on the branching fractions BðK0S → πþπ−μþμ−Þ < 1.4 × 10−9 and BðK0L → πþπ−μþμ−Þ < 6.6 × 10−7, at the 90% confidence level.
Articolo in rivista - Articolo scientifico
Astronomy; Astrophysics; Physics; Particles; Fields
English
2-apr-2026
2026
113
7
072001
none
Aaij, R., W. Abdelmotteleb A., S., Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A., et al. (2026). Search for K0SðLÞ → π+π−μ+μ− decays at LHCb. PHYSICAL REVIEW D, 113(7) [10.1103/S1DV-CV1T].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/609601
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