Search for the rare decay $${{{B} ^+}} \!\rightarrow {\mu ^+} {\mu ^-} {\mu ^+} {{\upnu } _\mu } $$ B + → μ + μ - μ + ν μ
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Author(s) • • • • • • • • •
Aaij, R.
Beteta, C. A
Adeva, B.
Adinolfi, M.
Aidala, C. A
Ajaltouni, Z.
Akar, S.
Albicocco, P.
Albrecht, J.
Alessio, F.
Date Issued
August 13, 2019
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2019 Aug 13;79(8):675
Version
Final published version
Abstract
Abstract
A search for the rare leptonic decay
$${{{B} ^+}} \!\rightarrow {\mu ^+} {\mu ^-} {\mu ^+} {{\upnu } _\mu } $$
B
+
→
μ
+
μ
-
μ
+
ν
μ
is performed using proton-proton collision data corresponding to an integrated luminosity of
$$4.7 \, {\hbox {fb}}^{-1}$$
4.7
fb
-
1
collected by the LHCb experiment. The search is carried out in the region where the lowest of the two
$${\mu ^+\mu ^-} $$
μ
+
μ
-
mass combinations is below
$$980 {\mathrm {\,MeV\!/}c^2} $$
980
MeV
/
c
2
. The data are consistent with the background-only hypothesis and an upper limit of
$$1.6 \times 10^{-8}$$
1.6
×
10
-
8
at 95% confidence level is set on the branching fraction in the stated kinematic region.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-019-7112-x