Radial and orbital excitations of static-light mesons

We present results for the spectrum of static-light mesons from N{sub f}=2 lattice QCD. These results were obtained using all-to-all light-quark propagators on an anisotropic lattice, yielding an improved signal resolution when compared to more conventional lattice techniques. With a light-quark mas...

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Veröffentlicht in:Physical review. D, Particles and fields Particles and fields, 2007-05, Vol.75 (9), Article 094503
Hauptverfasser: Foley, Justin, Ó Cais, Alan, Peardon, Mike, Ryan, Sinéad M.
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Sprache:eng
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Zusammenfassung:We present results for the spectrum of static-light mesons from N{sub f}=2 lattice QCD. These results were obtained using all-to-all light-quark propagators on an anisotropic lattice, yielding an improved signal resolution when compared to more conventional lattice techniques. With a light-quark mass close to the strange quark, we have measured the splittings between the ground-state S-wave static-light meson and higher excitations. We attempt to identify the quantum numbers of the excited states in the context of the reduced spatial symmetries of the lattice.
ISSN:1550-7998
0556-2821
1550-2368
1089-4918
DOI:10.1103/PhysRevD.75.094503