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http://hdl.handle.net/2445/116244
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DC Field | Value | Language |
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dc.contributor.author | Feijoo Aliau, Albert | - |
dc.contributor.author | Magas, Volodymyr | - |
dc.contributor.author | Ramos Gómez, Àngels | - |
dc.contributor.author | Oset Baguena, Eulogio | - |
dc.date.accessioned | 2017-10-05T14:00:11Z | - |
dc.date.available | 2017-10-05T14:00:11Z | - |
dc.date.issued | 2016-08-10 | - |
dc.identifier.issn | 1434-6044 | - |
dc.identifier.uri | http://hdl.handle.net/2445/116244 | - |
dc.description.abstract | The hidden-charm pentaquark Pc(4450) observed recently by the LHCb collaboration may be of molecular nature, as advocated by some unitary approaches that also predict pentaquark partners in the strangeness S=−1 sector. In this work we argue that a hidden-charm strange pentaquark could be seen from the decay of the Λb, just as in the case of the non-strange Pc(4450), but looking into the J/ψηΛ decay mode and forming the invariant mass spectrum of J/ψΛ pairs. In the model presented here, which assumes a standard weak decay topology and incorporates the hadronization process and final-state interaction effects, we find the J/ψηΛ final states to be populated with similar strength as the J/ψK−p states employed for the observation of the non-strange pentaquark. This makes the Λb→J/ψηΛ decay to be an interesting process to observe a possible strange partner of the Pc(4450). We study the dependence of the J/ψΛ mass spectra on various model ingredients and on the unknown properties of the strange pentaquark. | - |
dc.format.extent | 12 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Società Italiana di Fisica & Springer Verlag | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1140/epjc/s10052-016-4302-7 | - |
dc.relation.ispartof | European Physical Journal C, 2016, vol. 76, num. 8, p. 446-1-446-12 | - |
dc.relation.uri | https://doi.org/10.1140/epjc/s10052-016-4302-7 | - |
dc.rights | cc-by (c) Feijoo, Alberto et al., 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Fenomenologia (Física) | - |
dc.subject.classification | Quarks | - |
dc.subject.classification | Microagregats | - |
dc.subject.classification | Partícules (Física nuclear) | - |
dc.subject.classification | Acceleradors de partícules | - |
dc.subject.other | Phenomenological theory (Physics) | - |
dc.subject.other | Quarks | - |
dc.subject.other | Microclusters | - |
dc.subject.other | Particles (Nuclear physics) | - |
dc.subject.other | Particle accelerators | - |
dc.title | A hidden-charm S=-1 pentaquark from the decay of Λb into J/ψηΛ states | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 670893 | - |
dc.date.updated | 2017-10-05T14:00:11Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
Files in This Item:
File | Description | Size | Format | |
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670893.pdf | 1.2 MB | Adobe PDF | View/Open |
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