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...

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Main Authors: Khachatryan, Vardan, Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Asilar, Ece, Md. Ali, Mohd. Adli
Format: Article
Language:English
English
Published: Springer Nature 2017
Subjects:
Online Access:http://irep.iium.edu.my/63075/
http://irep.iium.edu.my/63075/1/63075_Search%20for%20heavy%20resonances%20decaying%20_article.pdf
http://irep.iium.edu.my/63075/2/63075_Search%20for%20heavy%20resonances%20decaying%20_scopus.pdf
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author Khachatryan, Vardan
Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Md. Ali, Mohd. Adli
author_facet Khachatryan, Vardan
Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Md. Ali, Mohd. Adli
author_sort Khachatryan, Vardan
building IIUM Repository
collection Online Access
description 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.
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language English
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spelling iium-630752018-11-13T15:36:17Z http://irep.iium.edu.my/63075/ Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV Khachatryan, Vardan Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics 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. Springer Nature 2017-02-01 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/63075/1/63075_Search%20for%20heavy%20resonances%20decaying%20_article.pdf application/pdf en http://irep.iium.edu.my/63075/2/63075_Search%20for%20heavy%20resonances%20decaying%20_scopus.pdf 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 https://link.springer.com/content/pdf/10.1007%2FJHEP02%282017%29048.pdf 10.1007/JHEP02(2017)048
spellingShingle Q Science (General)
QC Physics
Khachatryan, Vardan
Sirunyan, A. M.
Tumasyan, A. R.
Adam, Wolfgang
Asilar, Ece
Md. Ali, Mohd. Adli
Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
title Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
title_full Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
title_fullStr Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
title_full_unstemmed Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
title_short Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 TeV
title_sort search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at √s=13 tev
topic Q Science (General)
QC Physics
url http://irep.iium.edu.my/63075/
http://irep.iium.edu.my/63075/
http://irep.iium.edu.my/63075/
http://irep.iium.edu.my/63075/1/63075_Search%20for%20heavy%20resonances%20decaying%20_article.pdf
http://irep.iium.edu.my/63075/2/63075_Search%20for%20heavy%20resonances%20decaying%20_scopus.pdf