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Search for new physics in top quark production in dilepton final states in proton-proton collisions at √s = 13 TeV
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| Autori |
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A. M. Sirunyan et al. (The CMS Collaboration)
Anno 2019
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| Tipologia |
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Articolo Rivista internazionale con referaggio
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| Abstract |
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A search for new physics in top quark production is performed in proton-proton collisions at 13TeV . The data set corresponds to an integrated luminosity of 35.9fb−1 collected in 2016 with the CMS detector. Events with two opposite-sign isolated leptons (electrons or muons), and b quark jets in the final state are selected. The search is sensitive to new physics in top quark pair production and in single top quark production in association with a W boson. No significant deviation from the standard model expectation is observed. Results are interpreted in the framework of effective field theory and constraints on the relevant effective couplings are set, one at a time, using a dedicated multivariate analysis. This analysis differs from previous searches for new physics in the top quark sector by explicitly separating tW from tt¯ events and exploiting the specific sensitivity of the tW process to new physics.
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| Referenza_Bibliografica |
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Eur. Phys. J. C 79 (2019) 886
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| Riferimento WEB |
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http://inspirehep.net/record/1726887
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| Riferimento WEB 2 |
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https://arxiv.org/abs/1903.11144
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| Unita di Ricerca |
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RADEC
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| LastUpdate |
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05/01/2022
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