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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer Verlag
2017
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| Subjects: | |
| Online Access: | 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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| 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. |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T17:01:35Z |
| format | Article |
| id | iium-63070 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:01:35Z |
| publishDate | 2017 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 |
| 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 |
| 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_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_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_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 |
| topic | Q Science (General) QC Physics |
| 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 |