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Article: Search for high-mass dilepton resonances using 139 fb−1of pp collision data collected at √s=13TeV with the ATLAS detector
Title | Search for high-mass dilepton resonances using 139 fb−1of pp collision data collected at √s=13TeV with the ATLAS detector |
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Authors | |
Keywords | Collisions Jets Proton–proton collisions |
Issue Date | 2019 |
Publisher | Elsevier: SCOAP3. The Journal's web site is located at http://www.elsevier.com/locate/physletb |
Citation | Physics Letters B, 2019, v. 796, p. 68-87 How to Cite? |
Abstract | A search for high-mass dielectron and dimuon resonances in the mass range of 250GeVto 6TeVis presented. The data were recorded by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of √s=13TeVduring Run 2 of the Large Hadron Collider and correspond to an integrated luminosity of 139fb−1. A functional form is fitted to the dilepton invariant-mass distribution to model the contribution from background processes, and a generic signal shape is used to determine the significance of observed deviations from this background estimate. No significant deviation is observed and upper limits are placed at the 95% confidence level on the fiducial cross-section times branching ratio for various resonance width hypotheses. The derived limits are shown to be applicable to spin-0, spin-1 and spin-2 signal hypotheses. For a set of benchmark models, the limits are converted into lower limits on the resonance mass and reach 4.5TeVfor the E6-motivated Z.ψboson. Also presented are limits on Heavy Vector Triplet model couplings. |
Persistent Identifier | http://hdl.handle.net/10722/277365 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 1.593 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | LO, CY | - |
dc.contributor.author | Paredes Hernandez, D | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | Salvucci, A | - |
dc.contributor.author | The ATLAS Collaboration | - |
dc.contributor.author | Pizzimento, L | - |
dc.date.accessioned | 2019-09-20T08:49:40Z | - |
dc.date.available | 2019-09-20T08:49:40Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Physics Letters B, 2019, v. 796, p. 68-87 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/10722/277365 | - |
dc.description.abstract | A search for high-mass dielectron and dimuon resonances in the mass range of 250GeVto 6TeVis presented. The data were recorded by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of √s=13TeVduring Run 2 of the Large Hadron Collider and correspond to an integrated luminosity of 139fb−1. A functional form is fitted to the dilepton invariant-mass distribution to model the contribution from background processes, and a generic signal shape is used to determine the significance of observed deviations from this background estimate. No significant deviation is observed and upper limits are placed at the 95% confidence level on the fiducial cross-section times branching ratio for various resonance width hypotheses. The derived limits are shown to be applicable to spin-0, spin-1 and spin-2 signal hypotheses. For a set of benchmark models, the limits are converted into lower limits on the resonance mass and reach 4.5TeVfor the E6-motivated Z.ψboson. Also presented are limits on Heavy Vector Triplet model couplings. | - |
dc.language | eng | - |
dc.publisher | Elsevier: SCOAP3. The Journal's web site is located at http://www.elsevier.com/locate/physletb | - |
dc.relation.ispartof | Physics Letters B | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Collisions | - |
dc.subject | Jets | - |
dc.subject | Proton–proton collisions | - |
dc.title | Search for high-mass dilepton resonances using 139 fb−1of pp collision data collected at √s=13TeV with the ATLAS detector | - |
dc.type | Article | - |
dc.identifier.email | Paredes Hernandez, D: dparedes@hku.hk | - |
dc.identifier.email | Tu, Y: yanjuntu@hku.hk | - |
dc.identifier.authority | Tu, Y=rp01971 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1016/j.physletb.2019.07.016 | - |
dc.identifier.scopus | eid_2-s2.0-85069590009 | - |
dc.identifier.hkuros | 305944 | - |
dc.identifier.volume | 796 | - |
dc.identifier.spage | 68 | - |
dc.identifier.epage | 87 | - |
dc.identifier.isi | WOS:000483426200013 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0370-2693 | - |