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Interpretation of the LHCb $P_c$(4312)$^+$ Signal
We study the nature of the new signal reported by LHCb in the J/ψp spectrum. Based on the S-matrix principles, we perform a minimum-bias analysis of the underlying reaction amplitude, focusing on the analytic properties that can be related to the microscopic origin of the Pc(4312)+ peak. By explorin...
| Autores principales: | , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.123.092001 http://cds.cern.ch/record/2673776 |
| _version_ | 1780962512336846848 |
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| author | Fernández-Ramírez, C. Pilloni, A. Albaladejo, M. Jackura, A. Mathieu, V. Mikhasenko, M. Silva-Castro, J.A. Szczepaniak, A.P. |
| author_facet | Fernández-Ramírez, C. Pilloni, A. Albaladejo, M. Jackura, A. Mathieu, V. Mikhasenko, M. Silva-Castro, J.A. Szczepaniak, A.P. |
| author_sort | Fernández-Ramírez, C. |
| collection | CERN |
| description | We study the nature of the new signal reported by LHCb in the J/ψp spectrum. Based on the S-matrix principles, we perform a minimum-bias analysis of the underlying reaction amplitude, focusing on the analytic properties that can be related to the microscopic origin of the Pc(4312)+ peak. By exploring several amplitude parametrizations, we find evidence for the attractive effect of the Σc+D¯0 channel, which is not strong enough, however, to form a bound state. |
| id | cern-2673776 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26737762022-08-10T12:24:35Zdoi:10.1103/PhysRevLett.123.092001http://cds.cern.ch/record/2673776engFernández-Ramírez, C.Pilloni, A.Albaladejo, M.Jackura, A.Mathieu, V.Mikhasenko, M.Silva-Castro, J.A.Szczepaniak, A.P.Interpretation of the LHCb $P_c$(4312)$^+$ Signalhep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyWe study the nature of the new signal reported by LHCb in the J/ψp spectrum. Based on the S-matrix principles, we perform a minimum-bias analysis of the underlying reaction amplitude, focusing on the analytic properties that can be related to the microscopic origin of the Pc(4312)+ peak. By exploring several amplitude parametrizations, we find evidence for the attractive effect of the Σc+D¯0 channel, which is not strong enough, however, to form a bound state.We study the nature of the new signal reported by LHCb in the J/psi p spectrum. Based on the S-matrix principles, we perform a minimum-bias analysis of the underlying reaction amplitude, focusing on the analytic properties that can be related to the microscopic origin of the Pc(4312) peak. By exploring several amplitude parametrizations, we find evidence for the attractive effect of the Sigma_c+ D0bar channel, which is not strong enough, however, to form a bound state.arXiv:1904.10021JLAB-THY-19-2921oai:cds.cern.ch:26737762019-04-22 |
| spellingShingle | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology Fernández-Ramírez, C. Pilloni, A. Albaladejo, M. Jackura, A. Mathieu, V. Mikhasenko, M. Silva-Castro, J.A. Szczepaniak, A.P. Interpretation of the LHCb $P_c$(4312)$^+$ Signal |
| title | Interpretation of the LHCb $P_c$(4312)$^+$ Signal |
| title_full | Interpretation of the LHCb $P_c$(4312)$^+$ Signal |
| title_fullStr | Interpretation of the LHCb $P_c$(4312)$^+$ Signal |
| title_full_unstemmed | Interpretation of the LHCb $P_c$(4312)$^+$ Signal |
| title_short | Interpretation of the LHCb $P_c$(4312)$^+$ Signal |
| title_sort | interpretation of the lhcb $p_c$(4312)$^+$ signal |
| topic | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1103/PhysRevLett.123.092001 http://cds.cern.ch/record/2673776 |
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