Improved limit on the branching fraction of the rare decay K-S(0) -> mu(+)mu(-)
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
A search for the decay K0
S → μ+μ− 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 B(K0
S → μ+μ−) < 0.8 (1.0) × 10−9 at
90% (95%) confidence level. This result improves the previous
upper limit on the branching fraction by an order of
magnitude.
S → μ+μ− 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 B(K0
S → μ+μ−) < 0.8 (1.0) × 10−9 at
90% (95%) confidence level. This result improves the previous
upper limit on the branching fraction by an order of
magnitude.
Date Issued
2017-10-13
Date Acceptance
2017-09-18
Citation
European Physical Journal C: Particles and Fields, 2017, 77 (10)
ISSN
1434-6044
Publisher
Springer Verlag (Germany)
Journal / Book Title
European Physical Journal C: Particles and Fields
Volume
77
Issue
10
Copyright Statement
© CERN for the benefit of the LHCb collaboration 2017. This article is an open access publication
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Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Publication Status
Published
Article Number
678