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.

Search for K⁰S(L) → π+ π- μ+ μ- decays at LHCb / R. Aaij, A. . .A.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 113:7(2026 Apr 02), pp. 072001.1-072001.13. [10.1103/s1dv-cv1t]

Search for K⁰S(L) → π+ π- μ+ μ- decays at LHCb

S. Cesare;C. Mancuso;D. Marangotto;N. Neri;G. Tonani;T. Tork;Z. Wang;
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.
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
   European Particle physics Latin American NETwork
   EPLANET
   European Commission
   SEVENTH FRAMEWORK PROGRAMME - SP3-People - Marie-Curie Actions
   246806
2-apr-2026
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1250745
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