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Scientific article
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English

Search for a Structure in the Bs0π± Invariant Mass Spectrum with the ATLAS Experiment

ContributorsATLAS Collaboration
Published inPhysical Review Letters, vol. 120, no. 20
Collection
  • Open Access - SCOAP3
Publication date2018
Abstract

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)<382 and ρX<0.015 for Bs0 mesons with transverse momenta above 10 GeV, and N(X)<356 and ρX<0.016 for transverse momenta above 15 GeV. Limits are also set for potential Bs0π± resonances in the mass range 5550 to 5700 MeV.

Citation (ISO format)
ATLAS Collaboration. Search for a Structure in the Bs0π± Invariant Mass Spectrum with the ATLAS Experiment. In: Physical Review Letters, 2018, vol. 120, n° 20. doi: 10.1103/PhysRevLett.120.202007
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Article (Published version)
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ISSN of the journal0031-9007
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