Search for Higgs boson pair production in the γ γ WW∗ channel using pp collision data recorded at √s = 13 TeV with the ATLAS detector

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Université Mohamed Premier and LPTPM

Abstract

Searches for non-resonant and resonant Higgs boson pair production are performed in the γ γ W W∗ channel with the final state of γ γ ν j j using 36.1 fb−1 of proton–proton collision data recorded at a centre-of-mass energy of
√s =13 TeV by the ATLAS detector at the Large Hadron Collider. No significant deviation from the Standard Model prediction is observed. A 95% confidence-level observed upper limit of 7.7 pb is set on the cross section for nonresonant
production, while the expected limit is 5.4 pb. A search for a narrow-width resonance X decaying to a pair of Standard Model Higgs bosons H H is performed with the same set of data, and the observed upper limits on σ (pp → X) × B(X → H H) range between 40.0 and 6.1 pb for masses of the resonance between 260 and 500 GeV, while the expected limits range between 17.6 and 4.4 pb. When deriving the limits above, the Standard Model branching
ratios of the H→γ γ and H→W W∗ are assumed.

Bibliographic note

39 pages in total, author list starting page 23, 4 figures, 6 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-20/

Details

Original languageEnglish
Article number1007
JournalEuropean Physical Journal C
Volume78
Publication statusPublished - 11 Dec 2018

Keywords

  • hep-ex