Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV

A search is presented for massive narrow resonances decaying either into two Higgs bosons, or into a Higgs boson and a W or Z boson. The decay channels considered are HH → bb¯τ +τ − and VH → q¯qτ +τ −, where H denotes the Higgs boson, and V denotes the W or Z boson. This analysis is based on...

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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 English
Published:	Springer Verlag 2019
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/71626/ http://irep.iium.edu.my/71626/ http://irep.iium.edu.my/71626/ http://irep.iium.edu.my/71626/1/71626_Search%20for%20heavy%20resonances%20decaying_article.pdf http://irep.iium.edu.my/71626/2/71626_Search%20for%20heavy%20resonances%20decaying_wos.pdf http://irep.iium.edu.my/71626/3/71626_Search%20for%20heavy%20resonances%20decaying_scopus.pdf

id	iium-71626
recordtype	eprints
spelling	iium-716262019-07-31T04:15:31Z http://irep.iium.edu.my/71626/ Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 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 narrow resonances decaying either into two Higgs bosons, or into a Higgs boson and a W or Z boson. The decay channels considered are HH → bb¯τ +τ − and VH → q¯qτ +τ −, where H denotes the Higgs boson, and V denotes the W or Z boson. This analysis is based on a data sample of proton-proton collisions collected at a center-of-mass energy of 13 TeV by the CMS Collaboration, corresponding to an integrated luminosity of 35.9 fb−1 . For the TeV-scale mass resonances considered, substructure techniques provide ways to differentiate among the hadronization products from vector boson decays to quarks, Higgs boson decays to bottom quarks, and quark- or gluon-induced jets. Reconstruction techniques are used that have been specifically optimized to select events in which the tau lepton pair is highly boosted. The observed data are consistent with standard model expectations and upper limits are set at 95% confidence level on the product of cross section and branching fraction for resonance masses between 0.9 and 4.0 TeV. Exclusion limits are set in the context of bulk radion and graviton models: spin-0 radion resonances are excluded below a mass of 2.7 TeV at 95% confidence level. In the spin-1 heavy vector triplet framework, mass-degenerate W0 and Z0 resonances with dominant couplings to the standard model gauge bosons are excluded below a mass of 2.8 TeV at 95% confidence level. These are the first limits for massive resonances at the TeV scale with these decay channels at √ s = 13 TeV. Springer Verlag 2019-01-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71626/1/71626_Search%20for%20heavy%20resonances%20decaying_article.pdf application/pdf en http://irep.iium.edu.my/71626/2/71626_Search%20for%20heavy%20resonances%20decaying_wos.pdf application/pdf en http://irep.iium.edu.my/71626/3/71626_Search%20for%20heavy%20resonances%20decaying_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2019) Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV. Journal of High Energy Physics, 2019 (1). pp. 1-41. ISSN 1126-6708 E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP01%282019%29051.pdf 10.1007/JHEP01(2019)051
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. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
description	A search is presented for massive narrow resonances decaying either into two Higgs bosons, or into a Higgs boson and a W or Z boson. The decay channels considered are HH → bb¯τ +τ − and VH → q¯qτ +τ −, where H denotes the Higgs boson, and V denotes the W or Z boson. This analysis is based on a data sample of proton-proton collisions collected at a center-of-mass energy of 13 TeV by the CMS Collaboration, corresponding to an integrated luminosity of 35.9 fb−1 . For the TeV-scale mass resonances considered, substructure techniques provide ways to differentiate among the hadronization products from vector boson decays to quarks, Higgs boson decays to bottom quarks, and quark- or gluon-induced jets. Reconstruction techniques are used that have been specifically optimized to select events in which the tau lepton pair is highly boosted. The observed data are consistent with standard model expectations and upper limits are set at 95% confidence level on the product of cross section and branching fraction for resonance masses between 0.9 and 4.0 TeV. Exclusion limits are set in the context of bulk radion and graviton models: spin-0 radion resonances are excluded below a mass of 2.7 TeV at 95% confidence level. In the spin-1 heavy vector triplet framework, mass-degenerate W0 and Z0 resonances with dominant couplings to the standard model gauge bosons are excluded below a mass of 2.8 TeV at 95% confidence level. These are the first limits for massive resonances at the TeV scale with these decay channels at √ s = 13 TeV.
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 heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
title_short	Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
title_full	Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
title_fullStr	Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
title_full_unstemmed	Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV
title_sort	search for heavy resonances decaying into two higgs bosons or into a higgs boson and a w or z boson in proton-proton collisions at 13 tev
publisher	Springer Verlag
publishDate	2019
url	http://irep.iium.edu.my/71626/ http://irep.iium.edu.my/71626/ http://irep.iium.edu.my/71626/ http://irep.iium.edu.my/71626/1/71626_Search%20for%20heavy%20resonances%20decaying_article.pdf http://irep.iium.edu.my/71626/2/71626_Search%20for%20heavy%20resonances%20decaying_wos.pdf http://irep.iium.edu.my/71626/3/71626_Search%20for%20heavy%20resonances%20decaying_scopus.pdf
first_indexed	2023-09-18T21:41:33Z
last_indexed	2023-09-18T21:41:33Z
_version_	1777413174082928640

Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV

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