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arXiv · hep-lat/0210043

Spin-3/2 Baryons in Lattice QCD

J. M. Zanotti·S. Choe·D. B. Leinweber·W. Melnitchouk·A. G. Williams·J. B. Zhang
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Abstract

We present first results for masses of spin-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 the isospin-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 the 1/2^+ mass and earlier nucleon mass simulations with a spin-1/2 interpolating field. For the isospin-3/2 Delta states, clear mass splittings are observed between the various 1/2^+/- and 3/2^+/- channels, with the calculated level orderings in good agreement with those observed empirically.

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J. M. Zanotti, S. Choe, D. B. Leinweber, W. Melnitchouk, A. G. Williams, J. B. Zhang. 2002-10-24. Spin-3/2 Baryons in Lattice QCD. https://doi.org/10.1016/s0920-5632(03)01544-5

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