Constraints on the K 0 S → μ + μ − Branching Fraction

C. J. G. Onderwater; M. van Veghel; Kristof de Bruyn; Mick Mulder; LHCb Collaboration

doi:10.1103/PhysRevLett.125.231801

Constraints on the K 0 S → μ + μ − Branching Fraction

C. J. G. Onderwater, M. van Veghel, Kristof de Bruyn, Mick Mulder, LHCb Collaboration

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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.

Original language	English
Article number	231801
Number of pages	10
Journal	Physical Review Letters
Volume	125
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.125.231801
Publication status	Published - 2-Dec-2020

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@article{29fee1c151b84210a39a4f779f9f6eed,

title = "Constraints on the K 0 S → μ + μ − Branching Fraction",

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.",

author = "R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and L. Dufour and M Mulder and Onderwater, {C. J. G.} and A. Pellegrino and S. Tolk and {van Veghel}, M. and {de Bruyn}, Kristof and Mick Mulder and {LHCb Collaboration}",

year = "2020",

month = dec,

day = "2",

doi = "10.1103/PhysRevLett.125.231801",

language = "English",

volume = "125",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "AMER PHYSICAL SOC",

number = "23",

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TY - JOUR

T1 - Constraints on the K 0 S → μ + μ − Branching Fraction

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Dufour, L.

AU - Mulder, M

AU - Onderwater, C. J. G.

AU - Pellegrino, A.

AU - Tolk, S.

AU - van Veghel, M.

AU - de Bruyn, Kristof

AU - Mulder, Mick

AU - LHCb Collaboration

PY - 2020/12/2

Y1 - 2020/12/2

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevLett.125.231801

DO - 10.1103/PhysRevLett.125.231801

M3 - Article

C2 - 33337231

SN - 0031-9007

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 231801

ER -

Constraints on the K 0 S → μ + μ − Branching Fraction

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