Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states

A search is performed for electroweak production of a vector-like top quark partner T of charge 2/3 in association with a standard model top or bottom quark, using 2.3 fb−1 of proton-proton collision data at √ s = 13 TeV collected by the CMS experiment at the CERN LHC. The search targets T quark...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Asilar, Ece, Bergauer, Thomas, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English
Published:	Springer Verlag 2017
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/63070/ http://irep.iium.edu.my/63070/ http://irep.iium.edu.my/63070/ http://irep.iium.edu.my/63070/1/63070_Search%20for%20electroweak%20production_article.pdf http://irep.iium.edu.my/63070/2/63070_Search%20for%20electroweak%20production_scopus.pdf

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recordtype	eprints
spelling	iium-630702018-11-09T03:33:45Z http://irep.iium.edu.my/63070/ Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Q Science (General) QC Physics A search is performed for electroweak production of a vector-like top quark partner T of charge 2/3 in association with a standard model top or bottom quark, using 2.3 fb−1 of proton-proton collision data at √ s = 13 TeV collected by the CMS experiment at the CERN LHC. The search targets T quarks decaying to a top quark and a Higgs boson in fully hadronic final states. For a T quark with mass above 1 TeV the daughter top quark and Higgs boson are highly Lorentz-boosted and can each appear as a single hadronic jet. Jet substructure and b tagging techniques are used to identify the top quark and Higgs boson jets, and to suppress the standard model backgrounds. An excess of events is searched for in the T quark candidate mass distribution in the data, which is found to be consistent with the expected backgrounds. Upper limits at 95% confidence level are set on the product of the single T quark production cross sections and the branching fraction B(T → tH), and these vary between 0.31 and 0.93 pb for T quark masses in the range 1000–1800 GeV. This is the first search for single electroweak production of a vector-like T quark in fully hadronic final states. Springer Verlag 2017-04-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/63070/1/63070_Search%20for%20electroweak%20production_article.pdf application/pdf en http://irep.iium.edu.my/63070/2/63070_Search%20for%20electroweak%20production_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2017) Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states. Journal of High Energy Physics, 2017 (4). pp. 1-35. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP11%282017%29029.pdf 10.1007/JHEP04(2017)136
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states
description	A search is performed for electroweak production of a vector-like top quark partner T of charge 2/3 in association with a standard model top or bottom quark, using 2.3 fb−1 of proton-proton collision data at √ s = 13 TeV collected by the CMS experiment at the CERN LHC. The search targets T quarks decaying to a top quark and a Higgs boson in fully hadronic final states. For a T quark with mass above 1 TeV the daughter top quark and Higgs boson are highly Lorentz-boosted and can each appear as a single hadronic jet. Jet substructure and b tagging techniques are used to identify the top quark and Higgs boson jets, and to suppress the standard model backgrounds. An excess of events is searched for in the T quark candidate mass distribution in the data, which is found to be consistent with the expected backgrounds. Upper limits at 95% confidence level are set on the product of the single T quark production cross sections and the branching fraction B(T → tH), and these vary between 0.31 and 0.93 pb for T quark masses in the range 1000–1800 GeV. This is the first search for single electroweak production of a vector-like T quark in fully hadronic final states.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states
title_short	Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states
title_full	Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states
title_fullStr	Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states
title_full_unstemmed	Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states
title_sort	search for electroweak production of a vector-like quark decaying to a top quark and a higgs boson using boosted topologies in fully hadronic final states
publisher	Springer Verlag
publishDate	2017
url	http://irep.iium.edu.my/63070/ http://irep.iium.edu.my/63070/ http://irep.iium.edu.my/63070/ http://irep.iium.edu.my/63070/1/63070_Search%20for%20electroweak%20production_article.pdf http://irep.iium.edu.my/63070/2/63070_Search%20for%20electroweak%20production_scopus.pdf
first_indexed	2023-09-18T21:29:27Z
last_indexed	2023-09-18T21:29:27Z
_version_	1777412412405710848

Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states

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