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K$\to \pi\pi$ Amplitudes from Lattice QCD with a Light Charm Quark
We compute the leading-order low-energy constants of the DeltaS=1 effective weak Hamiltonian in the quenched approximation of QCD with up, down, strange, and charm quarks degenerate and light (GIM limit). The low-energy constants are extracted by comparing the predictions of finite volume chiral per...
| Autores principales: | , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2006
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.98.082003 http://cds.cern.ch/record/973696 |