Mathur, NilmaniLee, Frank X.Alexandru, AndreiBennhold, C.Chen, YanbeiDong, Shao-JingDraper, TerrenceHorvath, IvanLiu, K. F.Tamhankar, SonaliZhang, Jian-Bo2006-07-052006-07-052004Physical Review D, 2004; 70(7):0745080556-2821http://hdl.handle.net/2440/11155We present a quenched lattice QCD calculation of spin-1/2 five-quark states with uudds̅ quark content for both positive and negative parities. We do not observe any bound pentaquark state in these channels for either I=0 or I=1. The states we found are consistent with KN scattering states which are checked to exhibit the expected volume dependence of the spectral weight. The results are based on overlap-fermion propagators on two lattices, 12³×28 and 16³×28, with the same lattice spacing of 0.2 fm, and pion mass as low as ∼180  MeV.en©2004 American Physical SocietyStudy of pentaquarks on the lattice with overlap fermionsJournal article002004106510.1103/PhysRevD.70.0745080002247996000662-s2.0-20844433381