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

M Aaboud, G Aad, B. Abbott, O Abdinov, B Abeloos, S. H. Abidi, Torsten Åkesson, Simona Bocchetta, Eric Corrigan, Caterina Doglioni, Vincent Hedberg, Göran Jarlskog, Charles Kalderon, Edgar Kellermann, Balazs Konya, Else Lytken, Katja Mankinen, Ulf Mjörnmark, Ruth Pöttgen, Trine PoulsenOxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review


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)
Original languageEnglish
Article number202007
JournalPhysical Review Letters
Issue number20
Publication statusPublished - 2018 May 18

Bibliographical note

Cited By :2

Export Date: 13 June 2018

Subject classification (UKÄ)

  • Subatomic Physics

Free keywords

  • Bosons
  • Hadrons
  • Mass spectrometry
  • ATLAS detectors
  • ATLAS experiment
  • Confidence levels
  • Invariant-mass spectra
  • Pp collisions
  • Production rates
  • Transverse momenta
  • Upper limits
  • Tellurium compounds


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