N* mass spectrum from an anisotropic action

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N* Mass Spectrum from an Anisotropic Action

Results are reported for N* masses in the 1/2+ and 1/2− sectors on an anisotropic lattice. The gauge action is the usual plaquette plus rectangle type, the quark action is of the D234 type, both having tadpole-improved tree-level coefficients. Clear splittings from the nucleon ground state are observed with smeared operators and 500 configurations. The first excited states in each channel are f...

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ژورنال

عنوان ژورنال: Nuclear Physics B - Proceedings Supplements

سال: 2001

ISSN: 0920-5632

DOI: 10.1016/s0920-5632(01)00969-0