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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/132736
Search for the Decays Bs0→τ+τ- and B0→τ+τ-
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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- ).
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BADALOV, Alexey, et al. Search for the Decays Bs0→τ+τ- and B0→τ+τ-. Physical Review Letters. 2017. Vol. 118, num. 25, pags. 251802. ISSN 0031-9007. [consulted: 10 of June of 2026]. Available at: https://hdl.handle.net/2445/132736