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Observation of the B[0 over s] → J/ψK[0 over S]K ± π ∓ decay

Author(s)
LHCb collaboration; Counts, Ian Thomas Hunt; Ilten, Philip J; Williams, Michael
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Alternative title
Observation of the B s 0  → J/ψK S 0 K ± π ∓ decay
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Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/
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Abstract
Decays of the form B (s) 0  → J/ψK S 0 h + h (′) −(h (′) = K, π) are searched for in proton-proton collision data corresponding to an integrated luminosity of 1.0 fb−1 recorded with the LHCb detector. The first observation of the B s 0 → J/ψK S 0 K ± π ∓ decay is reported, with significance in excess of 10 standard deviations. The B 0 → J/ψK S 0 K + K − decay is also observed for the first time. The branching fraction of B 0 → J/ψK S 0 π + π − is determined, to significantly better precision than previous measurements, using B 0 → J/ψK S 0 as a normalisation channel. Branching fractions and upper limits of the other B (s) 0 → J/ψK S 0 h + h (′) − modes are determined relative to that of the B 0 → J/ψK S 0 π + π − decay.
Date issued
2014-07
URI
http://hdl.handle.net/1721.1/91164
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag Berlin Heidelberg
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, et al. “Observation of the B s 0 → J/ψK S 0 K ± π ∓ Decay.” J. High Energ. Phys. 2014, no. 7 (July 2014).
Version: Final published version
ISSN
1029-8479

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