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Article: Combination of the Searches for Pair-Produced Vectorlike Partners of the Third-Generation Quarks at √s=13 TeV with the ATLAS Detector

TitleCombination of the Searches for Pair-Produced Vectorlike Partners of the Third-Generation Quarks at √s=13 TeV with the ATLAS Detector
Authors
Issue Date2018
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2018, v. 121 n. 21, article no. 211801 , p. 1-20 How to Cite?
AbstractA combination of the searches for pair-produced vectorlike partners of the top and bottom quarks in various decay channels (T→Zt/Wb/Ht, B→Zb/Wt/Hb) is performed using 36.1 fb-1 of pp collision data at s=13 TeV with the ATLAS detector at the Large Hadron Collider. The observed data are found to be in good agreement with the standard model background prediction in all individual searches. Therefore, combined 95% confidence-level upper limits are set on the production cross section for a range of vectorlike quark scenarios, significantly improving upon the reach of the individual searches. Model-independent limits are set assuming the vectorlike quarks decay to standard model particles. A singlet T is excluded for masses below 1.31 TeV and a singlet B is excluded for masses below 1.22 TeV. Assuming a weak isospin (T,B) doublet and |VTb|â‰|VtB|, T and B masses below 1.37 TeV are excluded.
Persistent Identifierhttp://hdl.handle.net/10722/266046
ISSN
2017 Impact Factor: 8.839
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLo, CY-
dc.contributor.authorOrlando, N-
dc.contributor.authorParedes Hernandez, DK-
dc.contributor.authorTu, Y-
dc.contributor.authorATLAS Collaboration-
dc.date.accessioned2018-12-17T02:16:38Z-
dc.date.available2018-12-17T02:16:38Z-
dc.date.issued2018-
dc.identifier.citationPhysical Review Letters, 2018, v. 121 n. 21, article no. 211801 , p. 1-20-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/266046-
dc.description.abstractA combination of the searches for pair-produced vectorlike partners of the top and bottom quarks in various decay channels (T→Zt/Wb/Ht, B→Zb/Wt/Hb) is performed using 36.1 fb-1 of pp collision data at s=13 TeV with the ATLAS detector at the Large Hadron Collider. The observed data are found to be in good agreement with the standard model background prediction in all individual searches. Therefore, combined 95% confidence-level upper limits are set on the production cross section for a range of vectorlike quark scenarios, significantly improving upon the reach of the individual searches. Model-independent limits are set assuming the vectorlike quarks decay to standard model particles. A singlet T is excluded for masses below 1.31 TeV and a singlet B is excluded for masses below 1.22 TeV. Assuming a weak isospin (T,B) doublet and |VTb|â‰|VtB|, T and B masses below 1.37 TeV are excluded.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org-
dc.relation.ispartofPhysical Review Letters-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleCombination of the Searches for Pair-Produced Vectorlike Partners of the Third-Generation Quarks at √s=13 TeV with the ATLAS Detector-
dc.typeArticle-
dc.identifier.emailParedes Hernandez, DK: dparedes@hku.hk-
dc.identifier.emailTu, Y: yanjuntu@hku.hk-
dc.identifier.authorityTu, Y=rp01971-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevLett.121.211801-
dc.identifier.pmid30517796-
dc.identifier.scopuseid_2-s2.0-85057470814-
dc.identifier.hkuros296461-
dc.identifier.volume121-
dc.identifier.issue21-
dc.identifier.spagearticle no. 211801, p. 1-
dc.identifier.epagearticle no. 211801, p. 20-
dc.identifier.isiWOS:000451008600002-
dc.publisher.placeUnited States-

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