Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV

A search for the production of a pair of top squarks at the LHC is presented. This search targets a region of parameter space where the kinematics of top squark pair production and top quark pair production are very similar, because of the mass difference between the top squark and the neutralino...

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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/72684/ http://irep.iium.edu.my/72684/ http://irep.iium.edu.my/72684/ http://irep.iium.edu.my/72684/1/72684%20Search%20for%20the%20pair%20production%20of%20light%20top%20squarks.pdf http://irep.iium.edu.my/72684/2/72684%20Search%20for%20the%20pair%20production%20of%20light%20top%20squarks%20SCOPUS.pdf

id	iium-72684
recordtype	eprints
spelling	iium-726842019-06-18T06:53:05Z http://irep.iium.edu.my/72684/ Search for the pair production of light top squarks in the e±µ∓ final state 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 the production of a pair of top squarks at the LHC is presented. This search targets a region of parameter space where the kinematics of top squark pair production and top quark pair production are very similar, because of the mass difference between the top squark and the neutralino being close to the top quark mass. The search is performed with 35.9 fb−1 of proton-proton collisions at a centre-of-mass energy of √ s = 13 TeV, collected by the CMS detector in 2016, using events containing one electron-muon pair with opposite charge. The search is based on a precise estimate of the top quark pair background, and the use of the MT2 variable, which combines the transverse mass of each lepton and the missing transverse momentum. No excess of events is found over the standard model predictions. Exclusion limits are placed at 95% confidence level on the production of top squarks up to masses of 208 GeV for models with a mass difference between the top squark and the lightest neutralino close to that of the top quark. Springer Berlin Heidelberg 2019-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/72684/1/72684%20Search%20for%20the%20pair%20production%20of%20light%20top%20squarks.pdf application/pdf en http://irep.iium.edu.my/72684/2/72684%20Search%20for%20the%20pair%20production%20of%20light%20top%20squarks%20SCOPUS.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Md. Ali, Mohd. Adli (2019) Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2016 (3). pp. 1-40. E-ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP03%282019%29101.pdf 10.1007/JHEP03(2019)101
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 the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV
description	A search for the production of a pair of top squarks at the LHC is presented. This search targets a region of parameter space where the kinematics of top squark pair production and top quark pair production are very similar, because of the mass difference between the top squark and the neutralino being close to the top quark mass. The search is performed with 35.9 fb−1 of proton-proton collisions at a centre-of-mass energy of √ s = 13 TeV, collected by the CMS detector in 2016, using events containing one electron-muon pair with opposite charge. The search is based on a precise estimate of the top quark pair background, and the use of the MT2 variable, which combines the transverse mass of each lepton and the missing transverse momentum. No excess of events is found over the standard model predictions. Exclusion limits are placed at 95% confidence level on the production of top squarks up to masses of 208 GeV for models with a mass difference between the top squark and the lightest neutralino close to that of the top quark.
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 the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV
title_short	Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV
title_full	Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV
title_fullStr	Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV
title_full_unstemmed	Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV
title_sort	search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 tev
publisher	Springer Berlin Heidelberg
publishDate	2019
url	http://irep.iium.edu.my/72684/ http://irep.iium.edu.my/72684/ http://irep.iium.edu.my/72684/ http://irep.iium.edu.my/72684/1/72684%20Search%20for%20the%20pair%20production%20of%20light%20top%20squarks.pdf http://irep.iium.edu.my/72684/2/72684%20Search%20for%20the%20pair%20production%20of%20light%20top%20squarks%20SCOPUS.pdf
first_indexed	2023-09-18T21:43:00Z
last_indexed	2023-09-18T21:43:00Z
_version_	1777413265183211520

Search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 TeV

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