Search for new particles decaying to a jet and an emerging jet

A search is performed for events consistent with the pair production of a new heavy particle that acts as a mediator between a dark sector and normal matter, and that decays to a light quark and a new fermion called a dark quark. The search is based on data corresponding to an integrated luminosi...

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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/71763/ http://irep.iium.edu.my/71763/ http://irep.iium.edu.my/71763/ http://irep.iium.edu.my/71763/1/71763_Search%20for%20new%20particles%20decaying_article.pdf http://irep.iium.edu.my/71763/2/71763_Search%20for%20new%20particles%20decaying_wos.pdf http://irep.iium.edu.my/71763/3/71763_Search%20for%20new%20particles%20decaying_scopus.pdf

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spelling	iium-717632019-07-12T02:33:34Z http://irep.iium.edu.my/71763/ Search for new particles decaying to a jet and an emerging jet Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics A search is performed for events consistent with the pair production of a new heavy particle that acts as a mediator between a dark sector and normal matter, and that decays to a light quark and a new fermion called a dark quark. The search is based on data corresponding to an integrated luminosity of 16.1 fb−1 from proton-proton collisions at √ s = 13 TeV collected by the CMS experiment at the LHC in 2016. The dark quark is charged only under a new quantum-chromodynamics-like force, and forms an “emerging jet” via a parton shower, containing long-lived dark hadrons that give rise to displaced vertices when decaying to standard model hadrons. The data are consistent with the expectation from standard model processes. Limits are set at 95% confidence level excluding dark pion decay lengths between 5 and 225 mm for dark mediators with masses between 400 and 1250 GeV. Decay lengths smaller than 5 and greater than 225 mm are also excluded in the lower part of this mass range. The dependence of the limit on the dark pion mass is weak for masses between 1 and 10 GeV. This analysis is the first dedicated search for the pair production of a new particle that decays to a jet and an emerging jet. Springer Verlag 2019-02-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/71763/1/71763_Search%20for%20new%20particles%20decaying_article.pdf application/pdf en http://irep.iium.edu.my/71763/2/71763_Search%20for%20new%20particles%20decaying_wos.pdf application/pdf en http://irep.iium.edu.my/71763/3/71763_Search%20for%20new%20particles%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 new particles decaying to a jet and an emerging jet. Journal of High Energy Physics, 2019 (2). pp. 1-41. ISSN 1126-6708 E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP02%282019%29179.pdf 10.1007/JHEP02(2019)179
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 new particles decaying to a jet and an emerging jet
description	A search is performed for events consistent with the pair production of a new heavy particle that acts as a mediator between a dark sector and normal matter, and that decays to a light quark and a new fermion called a dark quark. The search is based on data corresponding to an integrated luminosity of 16.1 fb−1 from proton-proton collisions at √ s = 13 TeV collected by the CMS experiment at the LHC in 2016. The dark quark is charged only under a new quantum-chromodynamics-like force, and forms an “emerging jet” via a parton shower, containing long-lived dark hadrons that give rise to displaced vertices when decaying to standard model hadrons. The data are consistent with the expectation from standard model processes. Limits are set at 95% confidence level excluding dark pion decay lengths between 5 and 225 mm for dark mediators with masses between 400 and 1250 GeV. Decay lengths smaller than 5 and greater than 225 mm are also excluded in the lower part of this mass range. The dependence of the limit on the dark pion mass is weak for masses between 1 and 10 GeV. This analysis is the first dedicated search for the pair production of a new particle that decays to a jet and an emerging jet.
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 new particles decaying to a jet and an emerging jet
title_short	Search for new particles decaying to a jet and an emerging jet
title_full	Search for new particles decaying to a jet and an emerging jet
title_fullStr	Search for new particles decaying to a jet and an emerging jet
title_full_unstemmed	Search for new particles decaying to a jet and an emerging jet
title_sort	search for new particles decaying to a jet and an emerging jet
publisher	Springer Verlag
publishDate	2019
url	http://irep.iium.edu.my/71763/ http://irep.iium.edu.my/71763/ http://irep.iium.edu.my/71763/ http://irep.iium.edu.my/71763/1/71763_Search%20for%20new%20particles%20decaying_article.pdf http://irep.iium.edu.my/71763/2/71763_Search%20for%20new%20particles%20decaying_wos.pdf http://irep.iium.edu.my/71763/3/71763_Search%20for%20new%20particles%20decaying_scopus.pdf
first_indexed	2023-09-18T21:41:46Z
last_indexed	2023-09-18T21:41:46Z
_version_	1777413187317006336

Search for new particles decaying to a jet and an emerging jet

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