Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV
The cross sections for the production of tt¯bb¯ and tt¯jj events and their ratio σtt¯bb¯/σtt¯jj are measured using data corresponding to an integrated luminosity of 2.3 fb−1collected in pp collisions at s=13 TeV with the CMS detector at the LHC. Events with two leptons (e or μ) and at least four rec...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
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Elsevier BV
2018
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| Online Access: | http://irep.iium.edu.my/64873/ http://irep.iium.edu.my/64873/1/64873_Measurements%20of%20tt%20cross%20%C2%AF%20sections%20in%20association_article.pdf http://irep.iium.edu.my/64873/2/64873_Measurements%20of%20tt%20cross%20%C2%AF%20sections%20in%20association_scopus.pdf |
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| 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. |
| building | IIUM Repository |
| collection | Online Access |
| description | The cross sections for the production of tt¯bb¯ and tt¯jj events and their ratio σtt¯bb¯/σtt¯jj are measured using data corresponding to an integrated luminosity of 2.3 fb−1collected in pp collisions at s=13 TeV with the CMS detector at the LHC. Events with two leptons (e or μ) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. In the full phase space, the measured ratio is 0.022±0.003(stat)±0.006(syst), the cross section σtt¯bb¯ is 4.0±0.6(stat)±1.3(syst) pb and σtt¯jj is 184±6(stat)±33(syst) pb. The measurements are compared with the standard model expectations obtained from a POWHEG simulation at next-to-leading-order interfaced with PYTHIA. |
| first_indexed | 2025-11-14T17:06:45Z |
| format | Article |
| id | iium-64873 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:06:45Z |
| publishDate | 2018 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-648732019-04-12T04:56:33Z http://irep.iium.edu.my/64873/ Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli QC Physics The cross sections for the production of tt¯bb¯ and tt¯jj events and their ratio σtt¯bb¯/σtt¯jj are measured using data corresponding to an integrated luminosity of 2.3 fb−1collected in pp collisions at s=13 TeV with the CMS detector at the LHC. Events with two leptons (e or μ) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. In the full phase space, the measured ratio is 0.022±0.003(stat)±0.006(syst), the cross section σtt¯bb¯ is 4.0±0.6(stat)±1.3(syst) pb and σtt¯jj is 184±6(stat)±33(syst) pb. The measurements are compared with the standard model expectations obtained from a POWHEG simulation at next-to-leading-order interfaced with PYTHIA. Elsevier BV 2018-01-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/64873/1/64873_Measurements%20of%20tt%20cross%20%C2%AF%20sections%20in%20association_article.pdf application/pdf en http://irep.iium.edu.my/64873/2/64873_Measurements%20of%20tt%20cross%20%C2%AF%20sections%20in%20association_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Md. Ali, Mohd. Adli (2018) Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 776. pp. 355-378. ISSN 0370-2693 https://reader.elsevier.com/reader/sd/545DA63AAC482BE198EC948865C03E219BAC236EAA5E9E0C5C986F0845F997B96A1B39A564FB6DB26551198F1592216F 10.1016/j.physletb.2017.11.043 |
| spellingShingle | QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Md. Ali, Mohd. Adli Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV |
| title | Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV |
| title_full | Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV |
| title_fullStr | Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV |
| title_full_unstemmed | Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV |
| title_short | Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV |
| title_sort | measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13tev |
| topic | QC Physics |
| url | http://irep.iium.edu.my/64873/ http://irep.iium.edu.my/64873/ http://irep.iium.edu.my/64873/ http://irep.iium.edu.my/64873/1/64873_Measurements%20of%20tt%20cross%20%C2%AF%20sections%20in%20association_article.pdf http://irep.iium.edu.my/64873/2/64873_Measurements%20of%20tt%20cross%20%C2%AF%20sections%20in%20association_scopus.pdf |