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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Springer Berlin Heidelberg
2019
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| Online Access: | 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 http://irep.iium.edu.my/72684/13/72684_Search%20for%20the%20pair%20production%20of%20light%20top%20squarks%20_wos.pdf |
| _version_ | 1848787659606982656 |
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| 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. |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T17:28:27Z |
| format | Article |
| id | iium-72684 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:28:27Z |
| publishDate | 2019 |
| publisher | Springer Berlin Heidelberg |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-726842020-04-11T16:37:13Z 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 application/pdf en http://irep.iium.edu.my/72684/13/72684_Search%20for%20the%20pair%20production%20of%20light%20top%20squarks%20_wos.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 |
| 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 |
| 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_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_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_sort | search for the pair production of light top squarks in the e±µ∓ final state in proton-proton collisions at √s = 13 tev |
| topic | Q Science (General) QC Physics |
| 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 http://irep.iium.edu.my/72684/13/72684_Search%20for%20the%20pair%20production%20of%20light%20top%20squarks%20_wos.pdf |