Light scalar mesons in 2+1 flavor full QCD

Details Light scalar mesons in 2+1 flavor full QCD Light scalar mesons in 2+1 flavor full QCD

2008-10-30

arxiv.org/abs/0810.5512v1

PoS LATTICE2008:108,2008

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 6 figures, Presented at the 26th International Symposium on Lattice Field Theory (Lattice 2008), Williamsburg, Virgin

Scientific paper

We study the a_0 and K_0^* light scalar mesons in 2+1 flavor full QCD. Particular attention is paid to fitting excited states, with an eye toward determining whether scattering states are revealed. An ultimate goal will be to see how dynamical quarks affect the picture outlined with an earlier quenched study using overlap fermions, namely, that it is the a_0(1450), not the a_0(980), which is the lowest $\bar{q}q$ isovector scalar state.

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