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DC Field | Value | Language |
---|---|---|
dc.contributor.author | CMS Collaboration | en_US |
dc.contributor.author | Sirunyan, A. M. | en_US |
dc.contributor.author | CHAUHAN, S. | en_US |
dc.contributor.author | DUBE, SOURABH | en_US |
dc.contributor.author | HEGDE, V. | en_US |
dc.contributor.author | KAPOOR, A. | en_US |
dc.contributor.author | KOTHEKAR, K. | en_US |
dc.contributor.author | PANDEY, S. | en_US |
dc.contributor.author | RANE, A. | en_US |
dc.contributor.author | RASTOGI, A. | en_US |
dc.contributor.author | SHARMA, SEEMA et al. | en_US |
dc.date.accessioned | 2020-03-13T05:09:40Z | - |
dc.date.available | 2020-03-13T05:09:40Z | - |
dc.date.issued | 2019-11 | en_US |
dc.identifier.citation | Journal of High Energy Physics, 2019(11). | en_US |
dc.identifier.issn | 1029-8479 | en_US |
dc.identifier.uri | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4491 | - |
dc.identifier.uri | https://doi.org/10.1007/JHEP11(2019)082 | en_US |
dc.description.abstract | A search for the standard model production of four top quarks (pp → tt¯tt¯) is reported using single-lepton plus jets and opposite-sign dilepton plus jets signatures. Proton-proton collisions are recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV in a sample corresponding to an integrated luminosity of 35.8 fb−1. A multivariate analysis exploiting global event and jet properties is used to discriminate tt¯tt¯ from tt¯ production. No significant deviation is observed from the predicted background. An upper limit is set on the cross section for tt¯tt¯ production in the standard model of 48 fb at 95% confidence level. When combined with a previous measurement by the CMS experiment from an analysis of other final states, the observed signal significance is 1.4 standard deviations, and the combined cross section measurement is 13+11−9 fb. The result is also interpreted in the framework of effective field theory. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Springer Nature | en_US |
dc.subject | Hadron-Hadron scattering (experiments) | en_US |
dc.subject | Top physics | en_US |
dc.subject | 2019 | en_US |
dc.subject | 2020-MAR-WEEK2 | en_US |
dc.title | Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV | en_US |
dc.type | Article | en_US |
dc.contributor.department | Dept. of Physics | en_US |
dc.identifier.sourcetitle | Journal of High Energy Physics | en_US |
dc.publication.originofpublisher | Foreign | en_US |
Appears in Collections: | JOURNAL ARTICLES |
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