Search for the rare decay [Formula omitted]

A search for the rare leptonic decay [Formula omitted] is performed using proton-proton collision data corresponding to an integrated luminosity of [Formula omitted] collected by the LHCb experiment. The search is carried out in the region where the lowest of the two [Formula omitted] mass combinati...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2019-08, Vol.79 (8), p.1-12
Main Authors: Aaij, R, Beteta, C. Abellán, Adeva, B, Adinolfi, M, Aidala, C. A, Ajaltouni, Z, Akar, S
Format: Article
Language:English
Subjects:
Collisions (Nuclear physics)
Confidence intervals
Decay
Large Hadron Collider
Luminosity
Particle collisions
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Summary:A search for the rare leptonic decay [Formula omitted] is performed using proton-proton collision data corresponding to an integrated luminosity of [Formula omitted] collected by the LHCb experiment. The search is carried out in the region where the lowest of the two [Formula omitted] mass combinations is below [Formula omitted]. The data are consistent with the background-only hypothesis and an upper limit of [Formula omitted] at 95% confidence level is set on the branching fraction in the stated kinematic region.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-019-7112-x