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Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector

Aaboud, M ; Åkesson, Torsten LU orcid ; Bocchetta, Simona LU ; Corrigan, Eric LU ; Doglioni, Caterina LU ; Gregersen, Kristian LU ; Brottmann Hansen, Eva LU ; Hedberg, Vincent LU ; Jarlskog, Göran LU and Kalderon, Charles LU , et al. (2018) In Physical Review Letters 121(19).
Abstract
A search for resonant and nonresonant pair production of Higgs bosons in the bbτ+τ- final state is presented. The search uses 36.1 fb-1 of pp collision data with s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs... (More)
A search for resonant and nonresonant pair production of Higgs bosons in the bbτ+τ- final state is presented. The search uses 36.1 fb-1 of pp collision data with s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model. Upper limits are placed on the resonant Higgs boson pair production cross-section times branching ratio, excluding resonances X in the mass range 305 GeV (Less)
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author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Dynamic mechanical analysis, Germanium compounds, Gravitation, Photons, Tellurium compounds, ATLAS detectors, ATLAS experiment, Confidence levels, Randall Sundrum gravitons, Randall-Sundrum, Supersymmetric models, Tau lepton pairs, The standard model, Bosons
in
Physical Review Letters
volume
121
issue
19
article number
191801
publisher
American Physical Society
external identifiers
  • scopus:85056712536
  • pmid:30468613
ISSN
1079-7114
DOI
10.1103/PhysRevLett.121.191801
language
English
LU publication?
yes
additional info
Export Date: 27 November 2018
id
d664f367-db93-4587-98e9-6daf1b338797
date added to LUP
2018-11-27 14:09:53
date last changed
2023-04-08 23:13:41
@article{d664f367-db93-4587-98e9-6daf1b338797,
  abstract     = {{A search for resonant and nonresonant pair production of Higgs bosons in the bbτ+τ- final state is presented. The search uses 36.1 fb-1 of pp collision data with s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model. Upper limits are placed on the resonant Higgs boson pair production cross-section times branching ratio, excluding resonances X in the mass range 305 GeV}},
  author       = {{Aaboud, M and Åkesson, Torsten and Bocchetta, Simona and Corrigan, Eric and Doglioni, Caterina and Gregersen, Kristian and Brottmann Hansen, Eva and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Konya, Balazs and Lytken, Else and Mankinen, Katja and Mjörnmark, Ulf and Pöttgen, Ruth and Poulsen, Trine and Smirnova, Oxana and Zwalinski, L}},
  issn         = {{1079-7114}},
  keywords     = {{Dynamic mechanical analysis; Germanium compounds; Gravitation; Photons; Tellurium compounds; ATLAS detectors; ATLAS experiment; Confidence levels; Randall Sundrum gravitons; Randall-Sundrum; Supersymmetric models; Tau lepton pairs; The standard model; Bosons}},
  language     = {{eng}},
  number       = {{19}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.121.191801}},
  doi          = {{10.1103/PhysRevLett.121.191801}},
  volume       = {{121}},
  year         = {{2018}},
}