Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at root s=13 TeV
AuthorsRuiz Vargas, J. C.
(ukupan broj autora: 1425)
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A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at root s = 13 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 fb(-1). The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the production cross section and branching fraction into tau lepton pairs is calculated as a function of the resonance mass. For the sequential standard model, the presence of Z bosons decaying into tau lepton pairs is excluded for Z/ masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z bosons that preferentially couple to third-generation fermions, Z masses below 1.7 TeV are excluded, representing the most stringent limit to date.
Keywords:Beyond Standard Model / Hadron-Hadron scattering (experiments) / Particle and resonance production
Source:Journal of High Energy Physics, 2017, 2
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