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Article: Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector
Title | Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector |
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Authors | |
Keywords | Jet substructure Beyond Standard Model Hadron-Hadron scattering (experiments) Heavy quark production Jets |
Issue Date | 2020 |
Publisher | Springer Verlag (Germany): SCOAP3. The Journal's web site is located at http://www.springer.com/physics/particle+and+nuclear+physics/journal/13130 |
Citation | Journal of High Energy Physics, 2020, v. 2020 n. 10, p. article no. 061 How to Cite? |
Abstract | This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb−1 of proton-proton collision data recorded at a centre-of-mass energy of s√ = 13 TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a tt¯ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new Z′ boson in a topcolor-assisted-technicolor model. The Z′ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively. |
Description | eid_2-s2.0-85092905089 |
Persistent Identifier | http://hdl.handle.net/10722/294123 |
ISSN | 2023 Impact Factor: 5.0 2023 SCImago Journal Rankings: 0.832 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Lo, CY | - |
dc.contributor.author | Paredes Hernandez, DP | - |
dc.contributor.author | Salvucci, A | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | Tam, KC | - |
dc.contributor.author | The ATLAS collaboration | - |
dc.contributor.author | Pizzimento, L | - |
dc.date.accessioned | 2020-11-23T08:26:38Z | - |
dc.date.available | 2020-11-23T08:26:38Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Journal of High Energy Physics, 2020, v. 2020 n. 10, p. article no. 061 | - |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | http://hdl.handle.net/10722/294123 | - |
dc.description | eid_2-s2.0-85092905089 | - |
dc.description.abstract | This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb−1 of proton-proton collision data recorded at a centre-of-mass energy of s√ = 13 TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a tt¯ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new Z′ boson in a topcolor-assisted-technicolor model. The Z′ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively. | - |
dc.language | eng | - |
dc.publisher | Springer Verlag (Germany): SCOAP3. The Journal's web site is located at http://www.springer.com/physics/particle+and+nuclear+physics/journal/13130 | - |
dc.relation.ispartof | Journal of High Energy Physics | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Jet substructure | - |
dc.subject | Beyond Standard Model | - |
dc.subject | Hadron-Hadron scattering (experiments) | - |
dc.subject | Heavy quark production | - |
dc.subject | Jets | - |
dc.title | Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector | - |
dc.type | Article | - |
dc.identifier.email | Paredes Hernandez, DP: 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 | 10.1007/JHEP10(2020)061 | - |
dc.identifier.scopus | eid_2-s2.0-85092905089 | - |
dc.identifier.hkuros | 318813 | - |
dc.identifier.volume | 2020 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | article no. 061 | - |
dc.identifier.epage | article no. 061 | - |
dc.identifier.isi | WOS:000579438800001 | - |
dc.publisher.place | Germany | - |
dc.identifier.issnl | 1029-8479 | - |