Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state

A search for a heavy W0 resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb−1 at √ s = 13 T...

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Main Authors: Sirunyan, A. M., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Bergauer, Thomas, Md. Ali, Mohd. Adli
Format: Article
Language:English
English
English
Published: Springer Berlin Heidelberg 2019
Subjects:
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spelling iium-726832019-08-01T02:50:28Z http://irep.iium.edu.my/72683/ Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state Sirunyan, A. M. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Q Science (General) QC Physics A search for a heavy W0 resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb−1 at √ s = 13 TeV. Both decay channels result in a final state with a top quark, a Higgs boson, and a b quark, each produced with significant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The finalstate jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. A W0 boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No significant deviation in data with respect to the standard model background predictions is observed. Cross section upper limits on W0 boson production in the top quark, Higgs boson, and b quark decay mode are set as a function of the W0 mass, for several vector-like quark mass hypotheses. These are the first limits for W0 boson production in this decay channel, and cover a range of 0.01 to 0.43 pb in the W0 mass range between 1.5 and 4.0 TeV. Springer Berlin Heidelberg 2019-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/72683/1/72683%20Search%20for%20a%20W%27%20boson%20decaying%20to%20a%20vector-like%20quark.pdf application/pdf en http://irep.iium.edu.my/72683/2/72683%20Search%20for%20a%20W%27%20boson%20decaying%20to%20a%20vector-like%20quark%20SCOPUS.pdf application/pdf en http://irep.iium.edu.my/72683/13/72683_Search%20for%20a%20W%20boson%20decaying%20to%20a%20vector-like%20quark%20and%20a%20top%20or%20bottom%20quark%20in%20the%20all-jets%20final%20state_wos.pdf Sirunyan, A. M. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2019) Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state. Journal of High Energy Physics, 2019 (3). pp. 1-40. E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP03%282019%29127.pdf 10.1007/JHEP03(2019)127
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
English
English
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Sirunyan, A. M.
Adam, Wolfgang
Ambrogi, Federico
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
description A search for a heavy W0 resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb−1 at √ s = 13 TeV. Both decay channels result in a final state with a top quark, a Higgs boson, and a b quark, each produced with significant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The finalstate jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. A W0 boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No significant deviation in data with respect to the standard model background predictions is observed. Cross section upper limits on W0 boson production in the top quark, Higgs boson, and b quark decay mode are set as a function of the W0 mass, for several vector-like quark mass hypotheses. These are the first limits for W0 boson production in this decay channel, and cover a range of 0.01 to 0.43 pb in the W0 mass range between 1.5 and 4.0 TeV.
format Article
author Sirunyan, A. M.
Adam, Wolfgang
Ambrogi, Federico
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
author_facet Sirunyan, A. M.
Adam, Wolfgang
Ambrogi, Federico
Asilar, Ece
Bergauer, Thomas
Md. Ali, Mohd. Adli
author_sort Sirunyan, A. M.
title Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_short Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_full Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_fullStr Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_full_unstemmed Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_sort search for a w' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
publisher Springer Berlin Heidelberg
publishDate 2019
url http://irep.iium.edu.my/72683/
http://irep.iium.edu.my/72683/
http://irep.iium.edu.my/72683/
http://irep.iium.edu.my/72683/1/72683%20Search%20for%20a%20W%27%20boson%20decaying%20to%20a%20vector-like%20quark.pdf
http://irep.iium.edu.my/72683/2/72683%20Search%20for%20a%20W%27%20boson%20decaying%20to%20a%20vector-like%20quark%20SCOPUS.pdf
http://irep.iium.edu.my/72683/13/72683_Search%20for%20a%20W%20boson%20decaying%20to%20a%20vector-like%20quark%20and%20a%20top%20or%20bottom%20quark%20in%20the%20all-jets%20final%20state_wos.pdf
first_indexed 2023-09-18T21:43:00Z
last_indexed 2023-09-18T21:43:00Z
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