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

Khachatryan, Vardan and Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Md. Ali, Mohd. Adli (2017) Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2017 (2). pp. 1-34. ISSN 1029-8479

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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 Z0 bosons decaying into tau lepton pairs is excluded for Z0 masses below 2.1 TeV, extending previous limits for this final state. For the topcolor-assisted technicolor model, which predicts Z0 bosons that preferentially couple to third-generation fermions, Z0 masses below 1.7 TeV are excluded, representing the most stringent limit to date.

Item Type:	Article (Journal)
Additional Information:	7861/63075
Uncontrolled Keywords:	Beyond Standard Model, Hadron-Hadron scattering (experiments), Particle and resonance production
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	12 Nov 2018 09:27
Last Modified:	13 Nov 2018 23:36
URI:	http://irep.iium.edu.my/id/eprint/63075

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