Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV

A search for a new scalar resonance decaying to a pair of Z bosons is performed in the mass range from 130 GeV to 3 TeV, and for various width scenarios. The analysis is based on proton-proton collisions recorded by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity...

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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: Springer Nature 2018
Subjects:
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http://irep.iium.edu.my/65969/1/65969_Search%20for%20a%20new%20scalar%20resonance_article.pdf
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spelling iium-659692018-08-29T00:51:24Z http://irep.iium.edu.my/65969/ Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions 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 for a new scalar resonance decaying to a pair of Z bosons is performed in the mass range from 130 GeV to 3 TeV, and for various width scenarios. The analysis is based on proton-proton collisions recorded by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb−1 at a center-of-mass energy of 13 TeV. The Z boson pair decays are reconstructed using the 4`, 2`2q, and 2`2ν final states, where ` = e or µ. Both gluon fusion and electroweak production of the scalar resonance are considered, with a free parameter describing their relative cross sections. A dedicated categorization of events, based on the kinematic properties of associated jets, and matrix element techniques are employed for an optimal signal and background separation. A description of the interference between signal and background amplitudes for a resonance of an arbitrary width is included. No significant excess of events with respect to the standard model expectation is observed and limits are set on the product of the cross section for a new scalar boson and the branching fraction for its decay to ZZ for a large range of masses and widths Springer Nature 2018-06-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/65969/1/65969_Search%20for%20a%20new%20scalar%20resonance_article.pdf application/pdf en http://irep.iium.edu.my/65969/2/65969_Search%20for%20a%20new%20scalar%20resonance_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 2018 (6). pp. 1-53. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP06%282018%29127.pdf 10.1007/JHEP06(2018)127
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 new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV
description A search for a new scalar resonance decaying to a pair of Z bosons is performed in the mass range from 130 GeV to 3 TeV, and for various width scenarios. The analysis is based on proton-proton collisions recorded by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb−1 at a center-of-mass energy of 13 TeV. The Z boson pair decays are reconstructed using the 4`, 2`2q, and 2`2ν final states, where ` = e or µ. Both gluon fusion and electroweak production of the scalar resonance are considered, with a free parameter describing their relative cross sections. A dedicated categorization of events, based on the kinematic properties of associated jets, and matrix element techniques are employed for an optimal signal and background separation. A description of the interference between signal and background amplitudes for a resonance of an arbitrary width is included. No significant excess of events with respect to the standard model expectation is observed and limits are set on the product of the cross section for a new scalar boson and the branching fraction for its decay to ZZ for a large range of masses and widths
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 new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV
title_short Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV
title_full Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV
title_fullStr Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV
title_full_unstemmed Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at √s=13 TeV
title_sort search for a new scalar resonance decaying to a pair of z bosons in proton-proton collisions at √s=13 tev
publisher Springer Nature
publishDate 2018
url http://irep.iium.edu.my/65969/
http://irep.iium.edu.my/65969/
http://irep.iium.edu.my/65969/
http://irep.iium.edu.my/65969/1/65969_Search%20for%20a%20new%20scalar%20resonance_article.pdf
http://irep.iium.edu.my/65969/2/65969_Search%20for%20a%20new%20scalar%20resonance_scopus.pdf
first_indexed 2023-09-18T21:33:36Z
last_indexed 2023-09-18T21:33:36Z
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