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Balazs Konya


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A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector


  • Aaboud M.
  • T. Åkesson
  • S. Bocchetta
  • E. Corrigan
  • C. Doglioni
  • V. Hedberg
  • G. Jarlskog
  • C. Kalderon
  • E. Kellermann
  • B. Konya
  • E. Lytken
  • K. Mankinen
  • U. Mjörnmark
  • R. Poettgen
  • T. Poulsen
  • O. Smirnova
  • O. Viazlo
  • Zwalinski L.

Summary, in English

A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb−1 of proton–proton collision data at s=13TeV collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle X is assumed to decay to a pair of light quarks, and the fully hadronic final state XH→qq¯′bb¯ is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the XH→qq¯′bb¯ resonance.


  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration

Publishing year







Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics



Document type

Journal article




  • Subatomic Physics




  • ISSN: 0370-2693