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http://hdl.handle.net/10347/22721
Título: | Study of the D0 p amplitude in Λ0b → D0 pπ − decays
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Autor/a: | LHCb Collaboration
Adeva Andany, Bernardo
Borsato, Martino
Chobanova, Veronika
Cid Vidal, Xabier
Dosil Suárez, Álvaro
Fernández Prieto, Antonio
Gallas Torreira, Abraham Antonio
García Pardiñas, Julián
Lemos Cid, Edgar
Lucio Martínez, Miriam
Martínez Santos, Diego
Plo Casasus, Máximo
Prisciandaro, Jessica
Ramos Pernas, Miguel
Romero Vidal, Antonio
Saborido Silva, Juan José
Sanmartín Sedes, Brais
Santamarina Ríos, Cibrán
Vázquez Regueiro, Pablo
Vieites Díaz, María
Vázquez Sierra, Carlos
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Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
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Palabras chave: | B physics | Charm physics | Hadron-Hadron scattering (experiments) | QCD | Spectroscopy | |
Data: | 2017
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Editor: | Springer
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Cita bibliográfica: | Aaij, R., Adeva, B., Adinolfi, M. et al. Study of the D0 p amplitude in Λ0b → D0 pπ − decays. J. High Energ. Phys. 2017, 30 (2017). https://doi.org/10.1007/JHEP05(2017)030
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Resumo: | An amplitude analysis of the decay Λ0b → D0 pπ − is performed in the part of the phase space containing resonances in the D0 p channel. The study is based on a data sample corresponding to an integrated luminosity of 3.0 fb−1 of pp collisions recorded by the LHCb experiment. The spectrum of excited Λ +c states that decay into D0 p is studied. The masses, widths and quantum numbers of the Λc(2880)+ and Λc(2940)+ resonances are measured. The constraints on the spin and parity for the Λc(2940)+ state are obtained for the first time. A near-threshold enhancement in the D0 p amplitude is investigated and found to be consistent with a new resonance, denoted the Λc(2860)+, of spin 3/2 and positive parity. |
Versión do editor: | https://doi.org/10.1007/JHEP05(2017)030 |
URI: | http://hdl.handle.net/10347/22721
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DOI: | 10.1007/JHEP05(2017)030 |
ISSN: | 1029-8479
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Dereitos: | © CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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