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Search for heavy lepton resonances decaying to a Z boson and a lepton in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
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Search for heavy lepton resonances decaying to a Z boson and a lepton in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
Bibliographic description
| title: | Search for heavy lepton resonances decaying to a Z boson and a lepton in $\mathit{pp}$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector |
| author: | Pałka Marek  , Richter-Wąs Elżbieta
|
| contributor: | Współautorami artykułu są członkowie ATLAS Collaboration w liczbie 2826 |
| institution: | The ATLAS collaboration |
| journal title: | The Journal of High Energy Physics |
| volume: | 2015 |
| issue: | 9 |
| date of publication : | 2015 |
| article ID: | 108 |
| ISSN: |
1126-6708 |
| eISSN: |
1029-8479 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at $\sqrt{s}=8$ TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb$^{−1}$. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114–176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100–468 GeV are excluded. |
| keywords in English: | hadron-hadron scattering |
| number of pulisher's sheets: | 2,5 |
| affiliation: | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego |
| type: | journal article |
| subtype: | academic paper |
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Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
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