Abstract
We present first results for masses ofspin-3/2 baryons in lattice QCD, using a novel fat-link clover fermion action in which only the irrelevant operators are constructed using fat links. In theisospin-1/2 sector; we observe, after appropriate spin and parity projection, a strong signal for the J P =3/2 − state, and find good agreement between the½ + mass and earlier nucleon mass simulations with aspin-½ interpolating field. For theisospin-3/2 Δ states, clear mass splittings are observed between the various½ ±and3/2 ± channels, with the calculated level orderings in good agreement with those observed empirically.
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