dc.contributor.author | Clark, Brian Lee | |
dc.contributor.author | Franklin, Melissa | |
dc.contributor.author | Huth, John | |
dc.contributor.author | Ippolito, Valerio | |
dc.contributor.author | Lazovich, Tomo | |
dc.contributor.author | Lopez Mateos, David | |
dc.contributor.author | Mercurio, Kevin | |
dc.contributor.author | Morii, Masahiro | |
dc.contributor.author | Spearman, William | |
dc.contributor.author | Sun, Siyuan | |
dc.contributor.author | Tolley, Emma | |
dc.contributor.author | Tuna, Alexander | |
dc.contributor.author | Yen, Andy | |
dc.contributor.author | Zambito, Stefano | |
dc.date.accessioned | 2017-11-30T20:16:57Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | ATLAS Collaboration. 2016. “Measurements of Fiducial Cross-Sections for tt¯ Production With One or Two Additional b -Jets in pp Collisions at √s = 8 TeV Using the ATLAS Detector.” The European Physical Journal C 76 (1) (January). doi:10.1140/epjc/s10052-015-3852-4. http://dx.doi.org/10.1140/epjc/s10052-015-3852-4. | en_US |
dc.identifier.issn | 1434-6044 | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:34401539 | |
dc.description.abstract | Fiducial cross-sections for tt¯ production with one or two additional b -jets are reported, using an integrated luminosity of 20.3 fb -1 of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for tt¯ events with at least one additional b -jet is measured to be 950 ± 70 (stat.) -190+240 (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) -10+15 (syst.) fb in the eμ channel. The cross-section times branching ratio for events with at least two additional b -jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton channel ( eμ , μμ , and ee ) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of tt¯ production with two additional b -jets to tt¯ production with any two additional jets. All measurements are in good agreement with recent theory predictions. | en_US |
dc.description.sponsorship | Physics | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Springer Nature | en_US |
dc.relation.isversionof | doi:http://dx.doi.org/10.1140/epjc/s10052-015-3852-4 | en_US |
dash.license | LAA | |
dc.title | Measurements of Fiducial Cross-Sections for tt¯ Production With One or Two Additional b -Jets in pp Collisions at √s = 8 TeV Using the ATLAS Detector | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Version of Record | en_US |
dc.relation.journal | The European Physical Journal C | en_US |
dash.depositing.author | Franklin, Melissa | |
dc.date.available | 2017-11-30T20:16:57Z | |
dc.identifier.doi | 10.1140/epjc/s10052-015-3852-4 | * |
dash.authorsordered | false | |
dash.identifier.orcid | 0000-0002-3377-8164 | en_US |
dash.contributor.affiliated | Mercurio, Kevin | |
dash.contributor.affiliated | Spearman, William | |
dash.contributor.affiliated | Lazovich, Tomo | |
dash.contributor.affiliated | Lopez Mateos, David | |
dash.contributor.affiliated | Ippolito, Valerio | |
dash.contributor.affiliated | Clark, Brian Lee | |
dash.contributor.affiliated | Zambito, Stefano | |
dash.contributor.affiliated | Tuna, Alexander | |
dash.contributor.affiliated | Tolley, Emma | |
dash.contributor.affiliated | Sun, Siyuan | |
dash.contributor.affiliated | Yen, Andy | |
dash.contributor.affiliated | Franklin, Melissa | |
dash.contributor.affiliated | Morii, Masahiro | |
dash.contributor.affiliated | Huth, John | |
dc.identifier.orcid | 0000-0002-3377-8164 | |