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Article: Reconstruction and identification of boosted di-ד systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS

TitleReconstruction and identification of boosted di-ד systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS
Authors
KeywordsBeyond Standard Model
Hadron-Hadron scattering (experiments)
Higgs physics
Tau Physics
Issue Date2020
PublisherSpringer Verlag: 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. 11, p. article no. 163 How to Cite?
AbstractIn this paper, a new technique for reconstructing and identifying hadronically decaying tau (+)tau (-) pairs with a large Lorentz boost, referred to as the di-tau tagger, is developed and used for the first time in the ATLAS experiment at the Large Hadron Collider. A benchmark di-tau tagging selection is employed in the search for resonant Higgs boson pair production, where one Higgs boson decays into a boosted bb pair and the other into a boosted tau (+)tau (-) pair, with two hadronically decaying tau -leptons in the final state. Using 139 fb(-1) of proton-proton collision data recorded at a centre-of-mass energy of 13 TeV, the efficiency of the di-tau tagger is determined and the background with quark- or gluon-initiated jets misidentified as di-tau objects is estimated. The search for a heavy, narrow, scalar resonance produced via gluon-gluon fusion and decaying into two Higgs bosons is carried out in the mass range 1-3 TeV using the same dataset. No deviations from the Standard Model predictions are observed, and 95% confidence-level exclusion limits are set on this model.
Persistent Identifierhttp://hdl.handle.net/10722/295480
ISSN
2020 Impact Factor: 5.81
2020 SCImago Journal Rankings: 0.998
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorOrlando, N-
dc.contributor.authorParedes Hernandez, D-
dc.contributor.authorTu, Y-
dc.contributor.authorSalvucci, A-
dc.contributor.authorTam, KC-
dc.contributor.authorThe ATLAS collaboration-
dc.date.accessioned2021-01-25T11:15:30Z-
dc.date.available2021-01-25T11:15:30Z-
dc.date.issued2020-
dc.identifier.citationJournal of High Energy Physics, 2020, v. 2020 n. 11, p. article no. 163-
dc.identifier.issn1029-8479-
dc.identifier.urihttp://hdl.handle.net/10722/295480-
dc.description.abstractIn this paper, a new technique for reconstructing and identifying hadronically decaying tau (+)tau (-) pairs with a large Lorentz boost, referred to as the di-tau tagger, is developed and used for the first time in the ATLAS experiment at the Large Hadron Collider. A benchmark di-tau tagging selection is employed in the search for resonant Higgs boson pair production, where one Higgs boson decays into a boosted bb pair and the other into a boosted tau (+)tau (-) pair, with two hadronically decaying tau -leptons in the final state. Using 139 fb(-1) of proton-proton collision data recorded at a centre-of-mass energy of 13 TeV, the efficiency of the di-tau tagger is determined and the background with quark- or gluon-initiated jets misidentified as di-tau objects is estimated. The search for a heavy, narrow, scalar resonance produced via gluon-gluon fusion and decaying into two Higgs bosons is carried out in the mass range 1-3 TeV using the same dataset. No deviations from the Standard Model predictions are observed, and 95% confidence-level exclusion limits are set on this model.-
dc.languageeng-
dc.publisherSpringer Verlag: SCOAP3. The Journal's web site is located at http://www.springer.com/physics/particle+and+nuclear+physics/journal/13130-
dc.relation.ispartofJournal of High Energy Physics-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectBeyond Standard Model-
dc.subjectHadron-Hadron scattering (experiments)-
dc.subjectHiggs physics-
dc.subjectTau Physics-
dc.titleReconstruction and identification of boosted di-ד systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS-
dc.typeArticle-
dc.identifier.emailParedes Hernandez, D: dparedes@hku.hk-
dc.identifier.emailTu, Y: yanjuntu@hku.hk-
dc.identifier.authorityTu, Y=rp01971-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1007/JHEP11(2020)163-
dc.identifier.hkuros320946-
dc.identifier.volume2020-
dc.identifier.issue11-
dc.identifier.spagearticle no. 163-
dc.identifier.epagearticle no. 163-
dc.identifier.isiWOS:000600146700001-
dc.publisher.placeGermany-

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