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Heavy-quark spin symmetry for charmed and strange baryon resonances
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Heavy-quark spin symmetry for charmed and strange baryon resonances
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| Romanets, Olena; Tolós Rigueiro, Laura; García Recio, Carmen; Nieves Pamplona, Juan Miguel; Salcedo, Lorenzo Luis; Timmermans, Rob | |||
| This document is a artículoDate2013 | |||
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Este documento está disponible también en : http://hdl.handle.net/10550/39196 |
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| We study charmed and strange odd-parity baryon resonances that are generated dynamically by a unitary baryon-meson coupled-channels model which incorporates heavy-quark spin symmetry. This is accomplished by extending the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8) spin-flavor symmetry plus a suitable symmetry breaking. The model generates resonances with negative parity from the s-wave interaction of pseudoscalar and vector mesons with 1/2(+) and 3/2(+) baryons in all the isospin, spin, and strange sectors with one, two, and three charm units. Some of our results can be identified with experimental data from several facilities, such as the CLEO, Belle, or BaBar Collaborations, as well as with other theoretical models, whereas others do not have a straightforward identification and require the compilation of more data and also a refinement of the model. | |||
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Romanets, Olena Tolos, L. García Recio, Carmen Nieves Pamplona, Juan Miguel Salcedo, Lorenzo Luis Timmermans, Rob 2013 Heavy-quark spin symmetry for charmed and strange baryon resonances Nuclear Physics A 914 488 493 |
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| http://dx.doi.org/10.1016/j.nuclphysa.2013.01.033 |
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