Rimoldi, Marco; Mullier, Geoffrey; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Meloni, Federico; Beck, Hans Peter; Ereditato, Antonio (2018). Search for a Structure in the B⁰s π± Invariant Mass Spectrum with the ATLAS Experiment. Physical review letters, 120(20) American Physical Society 10.1103/PhysRevLett.120.202007
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A search for the narrow structure, X(5568), reported by the D0 Collaboration in the decay sequence X → B⁰sπ±, B⁰s → 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 19.5fb⁻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 B⁰s mesons, ρₓ, were determined at 95% confidence level. The results are N(X) < 382 and ρₓ < 0.015 for B⁰s 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 B⁰sπ± resonances in the mass range 5550 to 5700 MeV.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0031-9007 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
BORIS Import LHEP |
Date Deposited: |
26 Jun 2019 10:25 |
Last Modified: |
05 Dec 2022 15:27 |
Publisher DOI: |
10.1103/PhysRevLett.120.202007 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwaehnt |
BORIS DOI: |
10.7892/boris.129074 |
URI: |
https://boris.unibe.ch/id/eprint/129074 |
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