Scientific article
Open access

Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at 13 TeV

ContributorsATLAS Collaboration
  • Open Access - SCOAP3
Publication date2019

This paper describes a study of techniques for identifying Higgs bosons at high transverse momenta decaying into bottom-quark pairs, H→bb¯ , for proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy s=13 TeV. These decays are reconstructed from calorimeter jets found with the anti-kt R=1.0 jet algorithm. To tag Higgs bosons, a combination of requirements is used: b-tagging of R=0.2 track-jets matched to the large-R calorimeter jet, and requirements on the jet mass and other jet substructure variables. The Higgs boson tagging efficiency and corresponding multijet and hadronic top-quark background rejections are evaluated using Monte Carlo simulation. Several benchmark tagging selections are defined for different signal efficiency targets. The modelling of the relevant input distributions used to tag Higgs bosons is studied in 36 fb-1 of data collected in 2015 and 2016 using g→bb¯ and Z(→bb¯)γ event selections in data. Both processes are found to be well modelled within the statistical and systematic uncertainties.

Citation (ISO format)
ATLAS Collaboration. Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at 13 TeV. In: The European Physical Journal. C, Particles and Fields, 2019, vol. 79, p. 1–38. doi: 10.1140/epjc/s10052-019-7335-x
Main files (1)
Article (Published version)
ISSN of the journal1434-6044

Technical informations

Creation01/14/2020 8:39:42 AM
First validation01/14/2020 8:39:42 AM
Update time03/15/2023 6:44:14 PM
Status update03/15/2023 6:44:14 PM
Last indexation02/12/2024 11:46:41 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack