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Título:
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Two-meson cloud contribution to the baryon antidecuplet self-energy
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Autores:
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Llanes Estrada, Felipe José ;
Peláez Sagredo, José Ramón ;
Vicente Vacas, M. J. ;
Oset, E.
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science BV, 2005-06-13
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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We study the self-energy of the SU(3) antidecuplet coming from two-meson virtual clouds. Assuming that the exotic Theta(+) belongs to an antidecuplet representation with (1710) as nucleon partner, we derive effective Lagrangians that describe the decay of N(1710) into N pi pi with two pions in s- or p-wave. It is found that the self-energies for all members of the antidecuplet are attractive, and the larger strangeness particle is more bound. From two meson cloud, we obtain about 20% of the empirical mass splitting between states with different strangeness.
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En línea:
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https://eprints.ucm.es/id/eprint/24381/1/Llanes-Estrada_FJ48.pdf
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