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Moments of inertia, nucleon axial-vector coupling, the {\bf 8}, {\bf 10}, $\bar{\bf 10}$ and ${\bf 27}_{3/2}$ mass spectrums and the higher SU(3)_f representation mass splittings in the Skyrme model

The broad importance of recent experimental discovery of pentaquarks require more theoretical insight into the structure of higher representation multiplets. Nucleon axial-vector coupling, moments of inertia, the {\bf 8}, {\bf 10}, $\bar{\bf 10}$ and ${\bf 27}_{3/2}$ absolute mass spectrum and the h...

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Detalles Bibliográficos
Autores principales: Duplancic, G., Pasagic, H., Trampetic, J.
Lenguaje:eng
Publicado: 2004
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2004/07/027
http://cds.cern.ch/record/733642
Descripción
Sumario:The broad importance of recent experimental discovery of pentaquarks require more theoretical insight into the structure of higher representation multiplets. Nucleon axial-vector coupling, moments of inertia, the {\bf 8}, {\bf 10}, $\bar{\bf 10}$ and ${\bf 27}_{3/2}$ absolute mass spectrum and the higher SU(3)$_f$ representation mass splittings for the multiplets ${\bf 8}$, ${\bf 10}$, $\bar{\bf 10}$, ${\bf 27}$, ${\bf 35}$, $\bar{\bf 35}$, and $\bf 64$ as functions of Skyrme charge $e$ and the symmetry breaking parameters ($m_\pi, f_\pi, m_K, f_K$), are given in tabular form. Our computation gives very small ${\bf 27}_{3/2}-\bar{\bf 10}$ mass splitting suggesting that the ${\bf 27}_{3/2}$ mass spectrum should mix with or lie just a little bit above the $\bar{\bf 10}$-plet spectrum.