Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV

A search for dark matter produced in association with top quarks in protonproton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb−1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral sc...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English
Published:	Springer Berlin Heidelberg 2019
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/72686/ http://irep.iium.edu.my/72686/ http://irep.iium.edu.my/72686/ http://irep.iium.edu.my/72686/1/72686%20Search%20for%20dark%20matter%20produced.pdf http://irep.iium.edu.my/72686/2/72686%20Search%20for%20dark%20matter%20produced%20SCOPUS.pdf

id	iium-72686
recordtype	eprints
spelling	iium-726862019-06-18T02:35:16Z http://irep.iium.edu.my/72686/ Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Md. Ali, Mohd. Adli Q Science (General) QC Physics A search for dark matter produced in association with top quarks in protonproton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb−1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity. Springer Berlin Heidelberg 2019-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/72686/1/72686%20Search%20for%20dark%20matter%20produced.pdf application/pdf en http://irep.iium.edu.my/72686/2/72686%20Search%20for%20dark%20matter%20produced%20SCOPUS.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Md. Ali, Mohd. Adli (2019) Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2019 (3). pp. 1-45. E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP03%282019%29141.pdf 10.1007/JHEP03(2019)141
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 Md. Ali, Mohd. Adli Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV
description	A search for dark matter produced in association with top quarks in protonproton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb−1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV
title_short	Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV
title_full	Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV
title_fullStr	Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV
title_full_unstemmed	Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV
title_sort	search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 tev
publisher	Springer Berlin Heidelberg
publishDate	2019
url	http://irep.iium.edu.my/72686/ http://irep.iium.edu.my/72686/ http://irep.iium.edu.my/72686/ http://irep.iium.edu.my/72686/1/72686%20Search%20for%20dark%20matter%20produced.pdf http://irep.iium.edu.my/72686/2/72686%20Search%20for%20dark%20matter%20produced%20SCOPUS.pdf
first_indexed	2023-09-18T21:43:00Z
last_indexed	2023-09-18T21:43:00Z
_version_	1777413265486249984

Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s = 13 TeV

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