Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/119305
Title: First observation of the decay B(formula presented.)at LHCb
Author: Casanova Mohr, Raimon
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marín Benito, Carla
Picatoste Olloqui, Eduardo
Ruiz, Hugo (Ruiz Pérez)
Badalov, Alexey
LHCb Collaboration
Keywords: Interaccions d'hadrons
Col·lisions (Física)
Hadron interactions
Collisions (Physics)
Issue Date: 4-Jan-2016
Publisher: Springer Verlag
Abstract: A search for B0 (s) → K0SK∗ (892)0 decays is performed using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The B0 s → K0 SK∗ (892)0 decay is observed for the first time, with a significance of 7.1 standard deviations. The branching fraction is measured to be B(B 0 s → K¯ 0K∗ (892)0 ) + B(B 0 s → K0K¯ ∗ (892)0 ) = (16.4 ± 3.4 ± 2.3) × 10−6 , where the first uncertainty is statistical and the second is systematic. No evidence is found for the decay B0 → K0 SK∗ (892)0 and an upper limit is set on the branching fraction, B(B0 → K¯ 0K∗ (892)0 ) + B(B0 → K0K¯ ∗ (892)0 ) < 0.96 × 10−6 , at 90 % confidence level. All results are consistent with Standard Model predictions
Note: Reproducció del document publicat a: https://doi.org/10.1007/JHEP01(2016)012
It is part of: Journal of High Energy Physics, 2016, vol. 2016, num. 12
URI: http://hdl.handle.net/2445/119305
Related resource: https://doi.org/10.1007/JHEP01(2016)012
ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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