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Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV

A search for dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, in data recorded by the CMS detector in 2016 at the LHC, corr...

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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:
Q Science (General)
QC Physics
Online Access:http://irep.iium.edu.my/66016/1/66016_Search%20for%20dark%20matter%20in%20events%20with%20energetic_article.pdf
http://irep.iium.edu.my/66016/2/66016_Search%20for%20dark%20matter%20in%20events%20with%20energetic_scopus.pdf
http://irep.iium.edu.my/66016/
https://link.springer.com/article/10.1007%2FJHEP06%282018%29027
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spelling my.iium.irep.660162018-08-30T04:27:11Z http://irep.iium.edu.my/66016/ Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum 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 dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, in data recorded by the CMS detector in 2016 at the LHC, corresponding to an integrated luminosity of 36 fb−1 . New substructure techniques, including the novel use of energy correlation functions, are utilized to identify the decay products of the top quark. With no significant deviations observed from predictions of the standard model, limits are placed on the production of new heavy bosons coupling to dark matter particles. For a scenario with purely vector-like or purely axial-vector-like flavor changing neutral currents, mediator masses between 0.20 and 1.75 TeV are excluded at 95% confidence level, given a sufficiently small dark matter mass. Scalar resonances decaying into a top quark and a dark matter fermion are excluded for masses below 3.4 TeV, assuming a dark matter mass of 100 GeV Springer Nature 2018-06-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/66016/1/66016_Search%20for%20dark%20matter%20in%20events%20with%20energetic_article.pdf application/pdf en http://irep.iium.edu.my/66016/2/66016_Search%20for%20dark%20matter%20in%20events%20with%20energetic_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 dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV. Journal of High Energy Physics, 2018 (6). pp. 1-53. https://link.springer.com/article/10.1007%2FJHEP06%282018%29027 10.1007/JHEP06(2018)027
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
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 dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV
description A search for dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, in data recorded by the CMS detector in 2016 at the LHC, corresponding to an integrated luminosity of 36 fb−1 . New substructure techniques, including the novel use of energy correlation functions, are utilized to identify the decay products of the top quark. With no significant deviations observed from predictions of the standard model, limits are placed on the production of new heavy bosons coupling to dark matter particles. For a scenario with purely vector-like or purely axial-vector-like flavor changing neutral currents, mediator masses between 0.20 and 1.75 TeV are excluded at 95% confidence level, given a sufficiently small dark matter mass. Scalar resonances decaying into a top quark and a dark matter fermion are excluded for masses below 3.4 TeV, assuming a dark matter mass of 100 GeV
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 dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV
title_short Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV
title_full Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV
title_fullStr Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV
title_full_unstemmed Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 TeV
title_sort search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at √s=13 tev
publisher Springer Nature
publishDate 2018
url http://irep.iium.edu.my/66016/1/66016_Search%20for%20dark%20matter%20in%20events%20with%20energetic_article.pdf
http://irep.iium.edu.my/66016/2/66016_Search%20for%20dark%20matter%20in%20events%20with%20energetic_scopus.pdf
http://irep.iium.edu.my/66016/
https://link.springer.com/article/10.1007%2FJHEP06%282018%29027
_version_ 1643617673228058624
score 13.211869

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