A search for the decay KS0→μ+μ- is performed using proton-proton collision data, corresponding to an integrated luminosity of 5.6 fb-1 and collected with the LHCb experiment during 2016, 2017, and 2018 at a center-of-mass energy of 13 TeV. The observed signal yield is consistent with zero, yielding an upper limit of B(KS0→μ+μ-)<2.2×10-10 at 90% C.L.. The limit reduces to B(KS0→μ+μ-)<2.1×10-10 at 90% C.L. once combined with the result from data taken in 2011 and 2012.

Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Constraints on the KS0 →μ+μ- Branching Fraction. PHYSICAL REVIEW LETTERS, 125(23) [10.1103/PhysRevLett.125.231801].

Constraints on the KS0 →μ+μ- Branching Fraction

Borsato M.;Calvi M.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Martinazzoli L.;Martinelli M.;Meloni S.;Petruzzo M.;
2020

Abstract

A search for the decay KS0→μ+μ- is performed using proton-proton collision data, corresponding to an integrated luminosity of 5.6 fb-1 and collected with the LHCb experiment during 2016, 2017, and 2018 at a center-of-mass energy of 13 TeV. The observed signal yield is consistent with zero, yielding an upper limit of B(KS0→μ+μ-)<2.2×10-10 at 90% C.L.. The limit reduces to B(KS0→μ+μ-)<2.1×10-10 at 90% C.L. once combined with the result from data taken in 2011 and 2012.
Articolo in rivista - Articolo scientifico
Flavour Physics; B physics; LHC; Hadron-Hadron scattering (experiments);
English
2-dic-2020
2020
125
23
231801
none
Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., et al. (2020). Constraints on the KS0 →μ+μ- Branching Fraction. PHYSICAL REVIEW LETTERS, 125(23) [10.1103/PhysRevLett.125.231801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/301678
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