Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV

A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at s√=13 TeV collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 12.9 fb−1...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Asilar, Ece, Bergauer, Thomas, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English
Published:	Springer Nature 2017
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/63067/ http://irep.iium.edu.my/63067/ http://irep.iium.edu.my/63067/ http://irep.iium.edu.my/63067/13/63067_Search%20for%20dark%20matter%20produced%20with%20an%20energetic_article.pdf http://irep.iium.edu.my/63067/2/63067_Search%20for%20dark%20matter%20produced%20with%20_scopus.pdf

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spelling	iium-630672018-11-05T08:55:38Z http://irep.iium.edu.my/63067/ Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Q Science (General) QC Physics A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at s√=13 TeV collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 12.9 fb−1. The search includes events with jets from the hadronic decays of a W or Z boson. The data are found to be in agreement with the predicted background contributions from standard model processes. The results are presented in terms of simplified models in which dark matter particles are produced through interactions involving a vector, axial-vector, scalar, or pseudoscalar mediator. Vector and axial-vector mediator particles with masses up to 1.95 TeV, and scalar and pseudoscalar mediator particles with masses up to 100 and 430 GeV respectively, are excluded at 95% confidence level. The results are also interpreted in terms of the invisible decays of the Higgs boson, yielding an observed (expected) 95% confidence level upper limit of 0.44 (0.56) on the corresponding branching fraction. The results of this search provide the strongest constraints on the dark matter pair production cross section through vector and axial-vector mediators at a particle collider. When compared to the direct detection experiments, the limits obtained from this search provide stronger constraints for dark matter masses less than 5, 9, and 550 GeV, assuming vector, scalar, and axial-vector mediators, respectively. The search yields stronger constraints for dark matter masses less than 200 GeV, assuming a pseudoscalar mediator, when compared to the indirect detection results from Fermi-LAT. Springer Nature 2017-07-01 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/63067/13/63067_Search%20for%20dark%20matter%20produced%20with%20an%20energetic_article.pdf application/pdf en http://irep.iium.edu.my/63067/2/63067_Search%20for%20dark%20matter%20produced%20with%20_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2017) Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV. Journal of High Energy Physics, 2017 (7). pp. 1-49. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP07%282017%29014.pdf 10.1007/JHEP07(2017)014
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 Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV
description	A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at s√=13 TeV collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 12.9 fb−1. The search includes events with jets from the hadronic decays of a W or Z boson. The data are found to be in agreement with the predicted background contributions from standard model processes. The results are presented in terms of simplified models in which dark matter particles are produced through interactions involving a vector, axial-vector, scalar, or pseudoscalar mediator. Vector and axial-vector mediator particles with masses up to 1.95 TeV, and scalar and pseudoscalar mediator particles with masses up to 100 and 430 GeV respectively, are excluded at 95% confidence level. The results are also interpreted in terms of the invisible decays of the Higgs boson, yielding an observed (expected) 95% confidence level upper limit of 0.44 (0.56) on the corresponding branching fraction. The results of this search provide the strongest constraints on the dark matter pair production cross section through vector and axial-vector mediators at a particle collider. When compared to the direct detection experiments, the limits obtained from this search provide stronger constraints for dark matter masses less than 5, 9, and 550 GeV, assuming vector, scalar, and axial-vector mediators, respectively. The search yields stronger constraints for dark matter masses less than 200 GeV, assuming a pseudoscalar mediator, when compared to the indirect detection results from Fermi-LAT.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV
title_short	Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV
title_full	Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV
title_fullStr	Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV
title_full_unstemmed	Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV
title_sort	search for dark matter produced with an energetic jet or a hadronically decaying w or z boson at √s=13 tev
publisher	Springer Nature
publishDate	2017
url	http://irep.iium.edu.my/63067/ http://irep.iium.edu.my/63067/ http://irep.iium.edu.my/63067/ http://irep.iium.edu.my/63067/13/63067_Search%20for%20dark%20matter%20produced%20with%20an%20energetic_article.pdf http://irep.iium.edu.my/63067/2/63067_Search%20for%20dark%20matter%20produced%20with%20_scopus.pdf
first_indexed	2023-09-18T21:29:26Z
last_indexed	2023-09-18T21:29:26Z
_version_	1777412411968454656

Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at √s=13 TeV

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