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Título:
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Y(4260) and possible charmonium assignment
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Autores:
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Llanes Estrada, Felipe José
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Soc, 2005-08
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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
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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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The newly reported Y(4260) becomes the second most massive state in the charmonium family. We argue that it displaces the 4415 as the (largely) 4s vector charmonium state, recall s d wave interference to explain the lack of a signal in e e ! hadrons and suggest some further study avenues that can exclude exotic meson assignments. The absence of a J= KK mode can be understood, beyond phase space suppression, to be a consequence of chiral symmetry. We also provide a model calculation in this sector showing that, although forcing the fit somewhat (which suggests a small sea quark wave function component), the state can be incorporated in a standard scheme
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En línea:
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https://eprints.ucm.es/id/eprint/23197/1/Llanes-Estrada_FJ47libre.pdf
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