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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English English English |
| Published: |
Springer Berlin Heidelberg
2019
|
| Subjects: | |
| Online Access: | 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/72686/8/72686_Search%20for%20dark%20matter%20produced%20in%20association_scopus.pdf http://irep.iium.edu.my/72686/9/72686_Search%20for%20dark%20matter%20produced%20in%20association_wos.pdf |
| _version_ | 1848787660158533632 |
|---|---|
| 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 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. |
| first_indexed | 2025-11-14T17:28:27Z |
| format | Article |
| id | iium-72686 |
| 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-726862020-04-11T16:52:56Z 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/72686/8/72686_Search%20for%20dark%20matter%20produced%20in%20association_scopus.pdf application/pdf en http://irep.iium.edu.my/72686/9/72686_Search%20for%20dark%20matter%20produced%20in%20association_wos.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 |
| 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 |
| 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_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_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_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 |
| topic | Q Science (General) QC Physics |
| 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/72686/8/72686_Search%20for%20dark%20matter%20produced%20in%20association_scopus.pdf http://irep.iium.edu.my/72686/9/72686_Search%20for%20dark%20matter%20produced%20in%20association_wos.pdf |