Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/126347
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DC Field | Value | Language |
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dc.contributor.author | Aaboud, M. | - |
dc.contributor.author | Aad, G. | - |
dc.contributor.author | Abbott, B. | - |
dc.contributor.author | Abdinov, O. | - |
dc.contributor.author | Abeloos, B. | - |
dc.contributor.author | Abhayasinghe, D.K. | - |
dc.contributor.author | Abidi, S.H. | - |
dc.contributor.author | AbouZeid, O.S. | - |
dc.contributor.author | Abraham, N.L. | - |
dc.contributor.author | Abramowicz, H. | - |
dc.contributor.author | Abreu, H. | - |
dc.contributor.author | Abulaiti, Y. | - |
dc.contributor.author | Acharya, B.S. | - |
dc.contributor.author | Adachi, S. | - |
dc.contributor.author | Adamczyk, L. | - |
dc.contributor.author | Adelman, J. | - |
dc.contributor.author | Adersberger, M. | - |
dc.contributor.author | Adiguzel, A. | - |
dc.contributor.author | Adye, T. | - |
dc.contributor.author | Affolder, A.A. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | The Journal of High Energy Physics, 2018; 2018(10):031[i],1-031-47 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | http://hdl.handle.net/2440/126347 | - |
dc.description.abstract | A search for exotic decays of the Higgs boson into a pair of spin-zero particles, H → aa, where the a-boson decay sin to b-quarks promptly or with a mean proper lifetime cτₐ up to 6 mm and has a mass in the range of 20–60 GeV, is presented. The search is performed in events where the Higgs boson is produced in association with a W or Z boson, giving rise to a signature of one or two charged leptons (electrons or muons) and multiple jets from b-quark decays. The analysis is based on the dataset of proton-proton collisions at s√=13 TeV recorded in 2015 and 2016 by the ATLAS detector at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb⁻¹. No significant excess of events above the Standard Model background prediction is observed, and 95% confidence-level upper limits are derived for the production cross-sections for pp → WH, ZH and their combination, times the branching ratio of the decay chain H → aa → 4b. For a-bosons which decay promptly, the upper limit on the combination of cross-sections for WH and ZH times the branching ratio of H → aa → 4b ranges from 3.0 pb for ma = 20 GeV to 1.3 pb for mₐ = 60 GeV, assuming that the ratio of WH to ZH cross-sections follows the Standard Model prediction. For a-bosons with longer proper lifetimes, the most stringent limits are 1.8 pb and 0.68 pb, respectively, at cτa ∼ 0.4 mm. | - |
dc.description.statementofresponsibility | M. Aaboud … D. Duvnjak … P. Jackson … J.L. Oliver … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration] | - |
dc.language.iso | en | - |
dc.publisher | Springer Nature | - |
dc.rights | Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP³. Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. | - |
dc.source.uri | http://dx.doi.org/10.1007/jhep10(2018)031 | - |
dc.subject | Beyond Standard Model, hadron-hadron scattering (experiments), Higgs physics | - |
dc.title | Search for the Higgs boson produced in association with a vector boson and decaying into two spin-zero particles in the H → aa → 4b channel in pp collisions at √s = 13 TeV with the ATLAS detector | - |
dc.title.alternative | Search for the Higgs boson produced in association with a vector boson and decaying into two spin-zero particles in the H → aa → 4b channel in pp collisions at root s = 13 TeV with the ATLAS detector | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/JHEP10(2018)031 | - |
dc.relation.grant | ARC | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 4 Physics publications |
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hdl_126347.pdf | Published version | 940.54 kB | Adobe PDF | View/Open |
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