Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/57611
Título: | Search for a Structure in the Bs0 π± Invariant Mass Spectrum with the ATLAS Experiment |
Autor(es): | Onofre, A. Castro, Nuno Filipe ATLAS Collaboration |
Data: | 2018 |
Editora: | American Physical Society |
Revista: | Physical Review Letters |
Citação: | Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., . . . Zwalinski, L. (2018). Search for a Structure in the Bs0 π± Invariant Mass Spectrum with the ATLAS Experiment. [Article]. Physical Review Letters, 120(20). doi: 10.1103/PhysRevLett.120.202007 |
Resumo(s): | 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 19.5 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 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/57611 |
DOI: | 10.1103/PhysRevLett.120.202007 |
ISSN: | 0031-9007 |
e-ISSN: | 1079-7114 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PhysRevLett.120.202007.pdf | 543,11 kB | Adobe PDF | Ver/Abrir |