Searches for the Resonant Production of ZH/ZW/ZZ Pairs in the llqq Final State in Proton-Proton Collisions at s = 13 TeV with the ATLAS Detector
dc.contributor.author | Xi, Zhaoxu | |
dc.date.accessioned | 2018-10-25T17:40:26Z | |
dc.date.available | NO_RESTRICTION | |
dc.date.available | 2018-10-25T17:40:26Z | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/145964 | |
dc.description.abstract | Searches are presented for heavy resonances decaying into a Z boson and another boson (a W boson, a Z boson, or a heavy Higgs boson H) using data from proton-proton collisions at a center-of-mass energy of 13 TeV. The data were collected with the ATLAS detector in 2015 and 2016 at the Large Hadron Collider and correspond to a total integrated luminosity of 36.1 inverse-fb. The searches are performed in the llqq final state wherein the Z boson decays into a pair of electrons or muons (l = e, u), and the other boson decays into two quarks (q). The decay product of the hadronically decaying boson is reconstructed as either two jets with small radii or a single large-radius jet, depending on the transverse momentum of the boson. No evidence for resonant production of ZH, ZW, or ZZ pairs is observed. Upper limits are derived at 95% confidence level on the product of the production cross section of a resonance and its decay branching ratio(s) for the selected benchmark signal models. The results are interpreted in the context of extensions of the Standard Model with additional Higgs bosons (e.g. a two-Higgs-doublet model), heavy vector triplets (a model independent framework for the interpretation of spin-1 resonances), and the Randall-Sundrum framework with a warped extra dimension. | |
dc.language.iso | en_US | |
dc.subject | ATLAS | |
dc.subject | LHC | |
dc.subject | 13 TeV | |
dc.subject | BSM | |
dc.subject | Diboson | |
dc.subject | 2HDM | |
dc.title | Searches for the Resonant Production of ZH/ZW/ZZ Pairs in the llqq Final State in Proton-Proton Collisions at s = 13 TeV with the ATLAS Detector | |
dc.type | Thesis | en_US |
dc.description.thesisdegreename | PhD | en_US |
dc.description.thesisdegreediscipline | Physics | |
dc.description.thesisdegreegrantor | University of Michigan, Horace H. Rackham School of Graduate Studies | |
dc.contributor.committeemember | Qian, Jianming | |
dc.contributor.committeemember | Xu, Gongjun | |
dc.contributor.committeemember | Pierce, Aaron Thomas | |
dc.contributor.committeemember | Schwarz, Thomas Andrew | |
dc.contributor.committeemember | Zhou, Bing | |
dc.subject.hlbsecondlevel | Physics | |
dc.subject.hlbtoplevel | Science | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/145964/1/xzhaoxu_1.pdf | |
dc.identifier.orcid | 0000-0002-6257-6203 | |
dc.identifier.name-orcid | Xi, Zhaoxu; 0000-0002-6257-6203 | en_US |
dc.owningcollname | Dissertations and Theses (Ph.D. and Master's) |
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