Lattice studies of hadron physics with disconnected quark loops

Details Lattice studies of hadron physics with disconnected quark loops Lattice studies of hadron physics with disconnected quark loops

2010-12-13

arxiv.org/abs/1012.2645v1

PoS (ICHEP 2010) 368

Physics

High Energy Physics

High Energy Physics - Lattice

4pages, talk presented at 35th International Conference of High Energy Physics (ICHEP 2010), July 22-28, 2010, Paris, France

Scientific paper

Disconnected diagrams give crucial contributions to the physics of flavor singlet hadrons and to scalar form factors of non-singlet hadrons. Naive lattice calculation of the disconnected diagrams, however, requires a huge number of fermion matrix inversions and hence a prohibitively large computational cost. In this article, we present recent studies of the flavor-singelt meson spectrum and nucleon strange quark content using the all-to-all propagator to calculate the relevant disconnected diagrams.

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