Lasscock, B.Leinweber, D.Melnitchouk, W.Thomas, A.Williams, A.Young, R.Zanotti, J.2006-12-032006-12-032005Physical Review D: Particles, Fields, Gravitation and Cosmology, 2005; 72(7):074507-1-074507-101550-79981550-2368http://hdl.handle.net/2440/17567The possible discovery of the Θ+ pentaquark has motivated a number of studies of its nature using lattice QCD. While all the analyses thus far have focused on spin-1/2 states, here we report the results of the first exploratory study in quenched lattice QCD of pentaquarks with spin 3/2. For the spin-3/2 interpolating field we use a product of the standard N and K* operators. We do not find any evidence for the standard lattice resonance signature of attraction (i.e., binding at quark masses near the physical regime) in the JP=3/2- channel. Some evidence of binding is inferred in the isoscalar 3/2+ channel at several quark masses, in accord with the standard lattice resonance signature. This suggests that this is a good candidate for the further study of pentaquarks on the lattice.en©2005 American Physical SocietyJournal article002005119610.1103/PhysRevD.72.0745070002329363000552-s2.0-2974444486854506Leinweber, D. [0000-0002-4745-6027]Thomas, A. [0000-0003-0026-499X]Williams, A. [0000-0002-1472-1592]Young, R. [0000-0002-4527-1811]Zanotti, J. [0000-0002-3936-1597]