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http://hdl.handle.net/10261/108592
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dc.contributor.author | Xiao, C. W. | - |
dc.contributor.author | Oset, Eulogi | - |
dc.date.accessioned | 2014-12-10T12:48:24Z | - |
dc.date.available | 2014-12-10T12:48:24Z | - |
dc.date.issued | 2013-11-07 | - |
dc.identifier.citation | EUROPEAN PHYSICAL JOURNAL A (49): 11 (2013) | es_ES |
dc.identifier.issn | 1434-6001 | - |
dc.identifier.uri | http://hdl.handle.net/10261/108592 | - |
dc.description.abstract | Using a coupled-channel unitary approach, combining the heavy quark spin symmetry and the dynamics of the local hidden gauge, we investigate the meson-baryon interaction with hidden beauty and obtain several new states of N around 11 GeV. We consider the basis of states eta (b) N, I'N, BI > (b) , BI pound (b) , B (*) I > (b) , B (*) I pound (b) , B (*) I pound (b) (*) and find four basic bound states which correspond to BI pound (b) , BI pound (b) (*) , B (*) I pound (b) and B (*) I pound (b) (*) , decaying mostly into eta (b) N and I'N and with a binding energy about 50-130 MeV with respect to the thresholds of the corresponding channel. All of them have isospin I = 1/2 , and we find no bound states or resonances in I = 3/2 . The BI pound (b) state appears in J = 1/2 , the BI pound (b) (*) in J = 3/2 , the B (*) I pound (b) appears nearly degenerate in J = 1/2 , 3/2 and the B (*) I pound (b) (*) appears nearly degenerate in J = 1/2 , 3/2, 5/2. These states have a width from 2-110 MeV, with conservative estimates of uncertainties, except for the one in J = 5/2 which has zero width since it cannot decay into any of the states of the basis chosen. We make generous estimates of the uncertainties and find that within very large margins these states appear bound. | es_ES |
dc.description.sponsorship | We would like to thank J. Nieves for much help and useful discussions.This work is partly supported by the Spanish Ministerio de Economia y Competitivid ad and European FEDER funds under the contract number FIS2011-28853-C02-01, and the Generalitat Valenciana in the program Prometeo, 2009/090. We acknowledge the support of the European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (acronym Hadron Physics 3, Grant Agreement n. 283286) under the Seventh Framework Programme of EU | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer Nature | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | Chiral perturbation theory | es_ES |
dc.subject | Meson resonances | es_ES |
dc.title | Hidden beauty baryon states in the local hidden gauge approach with heavy quark spin symmetry | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1140/epja/i2013-13139-y | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1140/epja/i2013-13139-y | es_ES |
dc.identifier.e-issn | 1434-601X | - |
dc.relation.csic | Sí | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.languageiso639-1 | en | - |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairetype | artículo | - |
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