Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV

A search is presented for massive spin-1 Z0 resonances decaying to a top quark and a heavy vector-like top quark partner T. The search is based on a 2.6 fb−1 sample of proton-proton collisions at 13 TeV collected with the CMS detector at the LHC. The analysis is optimized for final states in wh...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English
Published:	Elsevier 2017
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/63056/ http://irep.iium.edu.my/63056/ http://irep.iium.edu.my/63056/ http://irep.iium.edu.my/63056/1/63056_Search%20for%20a%20heavy%20resonance%20decaying%20_article.pdf http://irep.iium.edu.my/63056/2/63056_Search%20for%20a%20heavy%20resonance%20decaying%20_scopus.pdf

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recordtype	eprints
spelling	iium-630562018-11-05T03:07:27Z http://irep.iium.edu.my/63056/ Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics A search is presented for massive spin-1 Z0 resonances decaying to a top quark and a heavy vector-like top quark partner T. The search is based on a 2.6 fb−1 sample of proton-proton collisions at 13 TeV collected with the CMS detector at the LHC. The analysis is optimized for final states in which the T quark decays to a W boson and a bottom quark. The focus is on all-jet final states in which both the W boson and the top quark decay into quarks that evolve into jets. The decay products of the top quark and of the W boson are assumed to be highly Lorentz-boosted and cannot be reconstructed as separate jets, but are instead reconstructed as merged, wide jets. Techniques for the identification of jet substructure and jet flavour are used to distinguish signal from background events. Several models for Z0 bosons decaying to T quarks are excluded at 95% confidence level, with upper limits on the cross section ranging from 0.13 to 10 pb, depending on the chosen hypotheses. This is the first search for a neutral spin-1 heavy resonance decaying to a top quark and a vector-like T quark in the all-hadronic final state Elsevier 2017-12-10 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/63056/1/63056_Search%20for%20a%20heavy%20resonance%20decaying%20_article.pdf application/pdf en http://irep.iium.edu.my/63056/2/63056_Search%20for%20a%20heavy%20resonance%20decaying%20_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2017) Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 775. pp. 315-337. ISSN 0370-2693 https://link.springer.com/content/pdf/10.1007%2FJHEP09%282017%29053.pdf 10.1016/j.physletb.2017.11.001
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 Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV
description	A search is presented for massive spin-1 Z0 resonances decaying to a top quark and a heavy vector-like top quark partner T. The search is based on a 2.6 fb−1 sample of proton-proton collisions at 13 TeV collected with the CMS detector at the LHC. The analysis is optimized for final states in which the T quark decays to a W boson and a bottom quark. The focus is on all-jet final states in which both the W boson and the top quark decay into quarks that evolve into jets. The decay products of the top quark and of the W boson are assumed to be highly Lorentz-boosted and cannot be reconstructed as separate jets, but are instead reconstructed as merged, wide jets. Techniques for the identification of jet substructure and jet flavour are used to distinguish signal from background events. Several models for Z0 bosons decaying to T quarks are excluded at 95% confidence level, with upper limits on the cross section ranging from 0.13 to 10 pb, depending on the chosen hypotheses. This is the first search for a neutral spin-1 heavy resonance decaying to a top quark and a vector-like T quark in the all-hadronic final state
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV
title_short	Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV
title_full	Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV
title_fullStr	Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV
title_full_unstemmed	Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV
title_sort	search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 tev
publisher	Elsevier
publishDate	2017
url	http://irep.iium.edu.my/63056/ http://irep.iium.edu.my/63056/ http://irep.iium.edu.my/63056/ http://irep.iium.edu.my/63056/1/63056_Search%20for%20a%20heavy%20resonance%20decaying%20_article.pdf http://irep.iium.edu.my/63056/2/63056_Search%20for%20a%20heavy%20resonance%20decaying%20_scopus.pdf
first_indexed	2023-09-18T21:29:25Z
last_indexed	2023-09-18T21:29:25Z
_version_	1777412410347356160

Search for a heavy resonance decaying to a top quark and a vector-like top quark at √s=13 TeV

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