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Search for the Theta^+(1540) in lattice QCD

URN to cite this document:
urn:nbn:de:bvb:355-epub-18360
DOI to cite this document:
10.5283/epub.1836
Hagen, Christian ; Hierl, Dieter ; Schäfer, Andreas
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Date of publication of this fulltext: 05 Aug 2009 13:33



Abstract

We report on a study of the pentaquark Theta^+(1540), using a variety of different interpolating fields. We use Chirally Improved fermions in combination with Jacobi smeared quark sources to improve the signal and get reliable results even for small quark masses. The results of our quenched calculations, which have been done on a 12^3 x 24 lattice with a lattice spacing of a = 0.148 fm, do not ...

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