Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/132736
Title: Search for the Decays Bs0→τ+τ- and B0→τ+τ-
Author: Badalov, Alexey
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Fernandez, G.
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, Eduardo
Rives Molina, Vicente José
Sánchez Gonzalo, David
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 21-Jun-2017
Publisher: American Physical Society
Abstract: A search for the rare decays Bs0→τ+τ- and B0→τ+τ- is performed using proton-proton collision data collected with the LHCb detector. The data sample corresponds to an integrated luminosity of 3 fb-1 collected in 2011 and 2012. The τ leptons are reconstructed through the decay τ-→π-π+π-ντ. Assuming no contribution from B0→τ+τ- decays, an upper limit is set on the branching fraction B (Bs0→τ+τ- )<6.8 ×10-3 at the 95% confidence level. If instead no contribution from Bs0→τ+τ- decays is assumed, the limit is B (B0→τ+τ- )<2.1 ×10-3 at the 95% confidence level. These results correspond to the first direct limit on B (Bs0→τ+τ- ) and the world's best limit on B (B0→τ+τ- ).
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.118.251802
It is part of: Physical Review Letters, 2017, vol. 118, num. 25, p. 251802
URI: http://hdl.handle.net/2445/132736
Related resource: https://doi.org/10.1103/PhysRevLett.118.251802
ISSN: 0031-9007
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Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Electrònica)

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