Constraints on the K S 0 → μ + μ − Branching Fraction
Name
PhysRevLett.125.231801.pdf
Description
Published version
Size
397.49 KB
Format
Adobe PDF
Checksum (MD5)
001e60b0297229fb15bdb2078a2ec3ac
Author(s)
Williams, Michael
Date Issued
2020
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Williams, Michael. 2020. "Constraints on the K S 0 → μ + μ − Branching Fraction." Physical Review Letters, 125 (23).
Version
Final published version
Abstract
A search for the decay $K^0_{\mathrm{S}}\rightarrow\mu^{+}\mu^{-}$ is
performed using proton-proton collision data, corresponding to an integrated
luminosity of $5.6\,\text{fb}^{-1}$ and collected with the LHCb experiment
during 2016, 2017 and 2018 at a center-of-mass energy of $13\,\mathrm{TeV}$.
The observed signal yield is consistent with zero, yielding an upper limit of
${\cal B}(K^0_{\mathrm{S}}\rightarrow\mu^{+}\mu^{-}) < 2.2 \times 10^{-10}$ at
90% CL. The limit reduces to ${\cal
B}(K^0_{\mathrm{S}}\rightarrow\mu^{+}\mu^{-}) < 2.1 \times 10^{-10}$ at 90% CL
once combined with the result from data taken in 2011 and 2012.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVLETT.125.231801
