%0 Journal Article %T Search for the Decays B-S(0) -> tau(+) tau(-) and B-0 -> tau(+) tau(-) %A LHCb Collaboration (Aaij, R. et al %A Garcia Martin, L. M. %A Henry, L. %A Martinez-Vidal, F. %A Oyanguren, A. %A Remon Alepuz, C. %A Ruiz Valls, P. %A Sanchez Mayordomo, C. %J Physical Review Letters %D 2017 %V 118 %N 25 %I Amer Physical Soc %@ 0031-9007 %G English %F LHCbCollaborationAaij_etal2017 %O WOS:000403790400001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3172), last updated on Sun, 02 Jul 2017 22:49:37 +0000 %X A search for the rare decays B-S(0) -> tau(+) tau(-) and B-0 -> tau(+) tau(-) 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 tau leptons are reconstructed through the decay tau(-) -> pi(-) pi(+)pi(-) nu(tau). Assuming no contribution from B-S(0) -> tau(+) tau(-) decays, an upper limit is set on the branching fraction B(B-S(0) -> tau(+) tau(-)) < 6.8 x 10(-3) at the 95% confidence level. If instead no contribution from B-S(0) -> tau(+) tau(-) decays is assumed, the limit is B(B-s(0) -> tau(+) tau(-)) < 2.1 x 10(-3) at the 95% confidence level. These results correspond to the first direct limit on B(B-S(0) -> tau(+) tau(-)) and the world's best limit on B(B-S(0) -> tau(+) tau(-)) %R 10.1103/PhysRevLett.118.251802 %U http://arxiv.org/abs/1703.02508 %U https://doi.org/10.1103/PhysRevLett.118.251802 %P 251802 - 10pp