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Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment
The cross section of the $t\bar{t}Z$ and $t\bar{t}W$ processes are measured in a simultaneous fit using 36.1 $\text{fb}^{-1}$ of of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13\ \text{TeV}$ recorded by the ATLAS experiment at the LHC. In addition, a fit is performed in the 4$...
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| Lenguaje: | eng |
| Publicado: |
2019
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| Acceso en línea: | http://cds.cern.ch/record/2654794 |
| _version_ | 1780961133516029952 |
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| author | Heer, Sebastian |
| author_facet | Heer, Sebastian |
| author_sort | Heer, Sebastian |
| collection | CERN |
| description | The cross section of the $t\bar{t}Z$ and $t\bar{t}W$ processes are measured in a simultaneous fit using 36.1 $\text{fb}^{-1}$ of of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13\ \text{TeV}$ recorded by the ATLAS experiment at the LHC. In addition, a fit is performed in the 4$\ell$ channel only, resulting in a cross section of $\sigma_{t\bar{t}Z} = 1.07 \pm 0.26 \,\text{pb}$. This result is consistent with the combined fit and agrees with the prediction by the Standard Model. |
| id | cern-2654794 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26547942021-05-03T08:06:52Zhttp://cds.cern.ch/record/2654794engHeer, SebastianTop-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experimentParticle Physics - ExperimentThe cross section of the $t\bar{t}Z$ and $t\bar{t}W$ processes are measured in a simultaneous fit using 36.1 $\text{fb}^{-1}$ of of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13\ \text{TeV}$ recorded by the ATLAS experiment at the LHC. In addition, a fit is performed in the 4$\ell$ channel only, resulting in a cross section of $\sigma_{t\bar{t}Z} = 1.07 \pm 0.26 \,\text{pb}$. This result is consistent with the combined fit and agrees with the prediction by the Standard Model.The cross section of the $t\bar{t}Z$~and $t\bar{t}W$~processes are measured in a simultaneous fit using 36.1 $\text{fb}^{-1}$ of of proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS experiment at the LHC. In addition, a fit is performed in the 4$\ell$ channel only, resulting in a cross section of $\sigma_{t\bar{t}Z} = 1.07 \pm 0.26 \,\text{pb}$. This result is consistent with the combined fit and agrees with the prediction by the Standard Model.arXiv:1901.04408ATL-PHYS-PROC-2018-ATL-PHYS-PROC-2019-015oai:cds.cern.ch:26547942019-01-24 |
| spellingShingle | Particle Physics - Experiment Heer, Sebastian Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment |
| title | Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment |
| title_full | Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment |
| title_fullStr | Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment |
| title_full_unstemmed | Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment |
| title_short | Top-quark pair production in association with a $Z$ boson in the 4$\ell$ channel with the ATLAS experiment |
| title_sort | top-quark pair production in association with a $z$ boson in the 4$\ell$ channel with the atlas experiment |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/2654794 |
| work_keys_str_mv | AT heersebastian topquarkpairproductioninassociationwithazbosoninthe4ellchannelwiththeatlasexperiment |