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Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS
The measurement of a Z boson together with a top quark pair in the four lepton channel is presented. The analysis uses the first 3.2 fb$^{-1}$ data at $\sqrt{s}=$13 Te\kern -0.1em V which were recorded by the ATLAS detector at the Large Hadron Collider in 2015. The inclusive t\={t}Z cross section is...
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| Lenguaje: | eng |
| Publicado: |
2016
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| Acceso en línea: | https://dx.doi.org/10.22323/1.276.0238 http://cds.cern.ch/record/2200785 |
| _version_ | 1780951293260464128 |
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| author | Schulte, Alexandra |
| author_facet | Schulte, Alexandra |
| author_sort | Schulte, Alexandra |
| collection | CERN |
| description | The measurement of a Z boson together with a top quark pair in the four lepton channel is presented. The analysis uses the first 3.2 fb$^{-1}$ data at $\sqrt{s}=$13 Te\kern -0.1em V which were recorded by the ATLAS detector at the Large Hadron Collider in 2015. The inclusive t\={t}Z cross section is extracted using a likelihood fit to signal and control regions in the three and four lepton channel, resulting in $\sigma _{\textit{t\={t}Z}} = 0.92 \pm 0.30 \mathrm{(stat.)} \pm 0.11 \mathrm{(syst.) pb}.$ |
| id | cern-2200785 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2016 |
| record_format | invenio |
| spelling | cern-22007852019-09-30T06:29:59Zdoi:10.22323/1.276.0238http://cds.cern.ch/record/2200785engSchulte, AlexandraMeasurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLASParticle Physics - ExperimentThe measurement of a Z boson together with a top quark pair in the four lepton channel is presented. The analysis uses the first 3.2 fb$^{-1}$ data at $\sqrt{s}=$13 Te\kern -0.1em V which were recorded by the ATLAS detector at the Large Hadron Collider in 2015. The inclusive t\={t}Z cross section is extracted using a likelihood fit to signal and control regions in the three and four lepton channel, resulting in $\sigma _{\textit{t\={t}Z}} = 0.92 \pm 0.30 \mathrm{(stat.)} \pm 0.11 \mathrm{(syst.) pb}.$ATL-PHYS-PROC-2016-096oai:cds.cern.ch:22007852016-07-21 |
| spellingShingle | Particle Physics - Experiment Schulte, Alexandra Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS |
| title | Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS |
| title_full | Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS |
| title_fullStr | Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS |
| title_full_unstemmed | Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS |
| title_short | Measurement of the $t\bar{t}Z$ cross section in the four lepton channel at 13 TeV with ATLAS |
| title_sort | measurement of the $t\bar{t}z$ cross section in the four lepton channel at 13 tev with atlas |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.22323/1.276.0238 http://cds.cern.ch/record/2200785 |
| work_keys_str_mv | AT schultealexandra measurementofthetbartzcrosssectioninthefourleptonchannelat13tevwithatlas |