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Improved limit on the branching fraction of the rare decay $${{K} ^0_{\mathrm { \scriptscriptstyle S}}} \rightarrow \mu ^+\mu ^-$$

Abstract:

A search for the decay $K^0_{\scriptscriptstyle S}\to\mu^+\mu^-$ is performed, based on a data sample of proton-proton collisions corresponding to an integrated luminosity of 3 fb$^{-1}$, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yield is consistent with the background-only hypothesis, yielding a limit on the branching fraction of ${\cal B}(K^0_{\scriptscriptstyle S}\to\mu^+\mu^-) < 0.8~(1.0) \times 10^{-9}$ at $90\%~(95\%)$ confidence level. ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1140/epjc/s10052-017-5230-x

Authors


Adinolfi, M More by this author
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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
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Publisher:
Springer Publisher's website
Journal:
European Physical Journal C Journal website
Volume:
77
Issue:
10
Pages:
678
Publication date:
2017-10-31
Acceptance date:
2017-09-18
DOI:
EISSN:
1434-6052
ISSN:
1434-6044
Pubs id:
pubs:702604
URN:
uri:bdd4d3e5-73d6-4efc-9fc7-69f058a119ff
UUID:
uuid:bdd4d3e5-73d6-4efc-9fc7-69f058a119ff
Local pid:
pubs:702604
Keywords:

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