Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector
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 s√=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb[superscript −1]. Three high-transverse...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag/SISSA
2017
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| Online Access: | http://hdl.handle.net/1721.1/106869 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826194442701242368 |
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| author | Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E |
| author_sort | Taylor, Frank E |
| collection | MIT |
| description | 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 s√=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb[superscript −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. |
| first_indexed | 2024-09-23T09:56:10Z |
| format | Article |
| id | mit-1721.1/106869 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:56:10Z |
| publishDate | 2017 |
| publisher | Springer-Verlag/SISSA |
| record_format | dspace |
| spelling | mit-1721.1/1068692022-09-26T14:42:02Z Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E 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 s√=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb[superscript −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. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2017-02-06T16:19:39Z 2017-02-06T16:19:39Z 2015-09 2015-06 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/106869 The ATLAS collaboration et al. “Search for Heavy Lepton Resonances Decaying to a Z Boson and a Lepton in Pp Collisions at √S = 8 TeV with the ATLAS Detector.” Journal of High Energy Physics 2015.9 (2015): n. pag. https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1007/JHEP09(2015)108 Journal of High Energy Physics Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag/SISSA Springer |
| spellingShingle | Taylor, Frank E Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector |
| title | Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_full | Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_fullStr | Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_full_unstemmed | Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_short | Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_sort | search for heavy lepton resonances decaying to a z boson and a lepton in pp collisions at √s 8 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/106869 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke searchforheavyleptonresonancesdecayingtoazbosonandaleptoninppcollisionsats8tevwiththeatlasdetector |