Search for a Structure in the Bs0 π± Invariant Mass Spectrum with the ATLAS Experiment

Research output: Contribution to journalArticle


A search for the narrow structure, X(5568), reported by the D0 Collaboration in the decay sequence X→Bs0π±, Bs0→J/ψφ, is presented. The analysis is based on a data sample recorded with the ATLAS detector at the LHC corresponding to 4.9 fb-1 of pp collisions at 7 TeV and 19.5 fb-1 at 8 TeV. No significant signal was found. Upper limits on the number of signal events, with properties corresponding to those reported by D0, and on the X production rate relative to Bs0 mesons, ρX, were determined at 95% confidence level. The results are N(X)


External organisations
  • University of Toronto
  • Mohamed Premier University
  • Aix-Marseille University
  • University of Oklahoma
  • Institute of Physics Azerbaijan National Academy of Sciences
  • University of Paris-Sud
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics


  • Bosons, Hadrons, Mass spectrometry, ATLAS detectors, ATLAS experiment, Confidence levels, Invariant-mass spectra, Pp collisions, Production rates, Transverse momenta, Upper limits, Tellurium compounds
Original languageEnglish
Article number202007
JournalPhysical Review Letters
Issue number20
StatePublished - 2018 May 18
Publication categoryResearch

Bibliographic note

Cited By :2 Export Date: 13 June 2018