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Search for high mass resonances decaying into τ -lepton pairs in pp collisions at √s=7 TeV
Journal article   Open access   Peer reviewed

Search for high mass resonances decaying into τ -lepton pairs in pp collisions at √s=7 TeV

S Chatrchyan, J. A Brochero Cifuentes, I. J Cabrillo, Alicia Calderon, S. H Chuang, J Duarte Campderros, Marta Felcini, M Fernández, G Gómez, J González Sánchez, …
Physics letters. B, Vol.716(1), pp.82-102
01/01/2012
DOI: 10.1016/j.physletb.2012.07.062
url
https://doi.org/10.1016/j.physletb.2012.07.062View
Published (Version of record) Open Access

Abstract

A search for high-mass resonances decaying into is performed using a data sample of pp collisions at . The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 4.9 fb−1. The number of observed events is in agreement with the standard model prediction. An upper limit on the product of the resonance cross section and branching fraction into τ-lepton pairs is calculated as a function of the resonance mass. Using the sequential standard model resonance and the superstring-inspired model with resonance as benchmarks, resonances with standard model couplings with masses below 1.4 and 1.1 TeV, respectively, are excluded at 95% confidence level.

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