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Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV

Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at 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.
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Belyaev, Alexander , The CMS Collaboration (2017) Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV. The Journal of High Energy Physics, 2017. (doi:10.1007/JHEP02(2017)048).

Record type: Article

Abstract

A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at 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.

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More information

Accepted/In Press date: 25 January 2017
e-pub ahead of print date: 9 February 2017
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 406170
URI: https://eprints.soton.ac.uk/id/eprint/406170
PURE UUID: e3e52263-ffdf-4eb7-8b91-27da64ae60b5
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 10 Mar 2017 10:41
Last modified: 20 Jul 2019 00:52

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