ar X iv : h ep - l at / 0 30 30 04 v 1 5 M ar 2 00 3 1 Spectroscopy using the Anisotropic Clover Action
نویسندگان
چکیده
The calculation of the light-hadron spectrum in the quenched approximation to QCD using an anisotropic clover fermion action is presented. The tuning of the parameters of the action is discussed, using the pion and ρ dispersion relation. The adoption of an anisotropic lattice provides clear advantages in the determination of the baryonic resonances, and in particular that of the so-called Roper resonance, the lightest radial excitation of the nucleon.
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تاریخ انتشار 2003