Search for a Structure in the $B^0_s \pi^\pm$ Invariant Mass Spectrum with the ATLAS Experiment
| Autor: | ATLAS collaboration (2887 authors), Aguilar-Saavedra, Juan Antonio, Amor Dos Santos, Susana Patricia, Anjos, Nuno, Araque, Juan Pedro, Castro, Nuno Filipe, Conde Mui\~no, Patricia, Da Cunha Sargedas De Sousa, Mario Jose, Fiolhais, Miguel, Galhardo, Bruno, Gomes, Agostinho, Gon\c calo, Ricardo, Jorge, Pedro, Machado Miguens, Joana, Maio, Am\'elia, Maneira, Jos\'e, Oleiro Seabra, Luis Filipe, Onofre, Ant\'onio, Pedro, Rute, Santos, Helena, Saraiva, Jo\~ao, Silva, Jos\'e, Tavares Delgado, Ademar, Veloso, Filipe, Wolters, Helmut |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação instacron:RCAAP |
| Popis: | 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) |
| Databáze: | OpenAIRE |
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