Some results on excited hadrons in 2-flavor QCD

Details Some results on excited hadrons in 2-flavor QCD Some results on excited hadrons in 2-flavor QCD

2010-10-12

arxiv.org/abs/1010.2366v2

PoS Lattice2010:103,2010

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 9 figures, 1 table, talk given at the XXVIII International Symposium on Lattice Field Theory (Lattice 2010), June 14-

Scientific paper

Results of hadron spectroscopy with two dynamical mass-degenerate chirally improved quarks are presented. Three ensembles with pion masses of 322(5), 470(4) and 525(7) MeV, lattices of size 16^3 \times 32, and lattice spacings close to 0.15 fm are investigated. We discuss the possible appearance of scattering states, considering masses and eigenvectors. Partially quenched results in the scalar channel suggest the presence of a 2-particle state, however, in most channels we cannot identify them. Where available, we compare to results from quenched simulations using the same action.

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