Cargando…
Chiral symmetry breaking, duality in the $\overline{Q}q$ channel and $b \to \overline{c}cs$ decays
We address the issue of the quark-hadron duality in the spectral densities induced by the heavy-light quark currents anti-Q q. In the limit m_Q ->oo, m_q ->0 we observe an enhancement of the physical spectral density compared to the quark one in the scalar and axial channels, due to the Goldst...
| Autores principales: | , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
1996
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(97)00122-3 http://cds.cern.ch/record/313725 |