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- W1601438685 abstract "We address the question whether the lightest scalar mesons sigma and kappa are tetraquarks. We present a search for possible light tetraquark states with J^PC=0^++ and I=0, 1/2, 3/2, 2 in the dynamical and the quenched lattice simulations using tetraquark interpolators. In all the channels, we unavoidably find lowest scattering states pi(k)pi(-k) or K(k)pi(-k) with back-to-back momentum k=0,2*pi/L,.. . However, we find an additional light state in the I=0 and I=1/2 channels, which may be related to the observed resonances sigma and kappa with a strong tetraquark component. In the exotic repulsive channels I=2 and I=3/2, where no resonance is observed, we find no light state in addition to the scattering states." @default.
- W1601438685 created "2016-06-24" @default.
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- W1601438685 date "2010-02-01" @default.
- W1601438685 modified "2023-10-14" @default.
- W1601438685 title "Searching for tetraquarks on the lattice" @default.
- W1601438685 cites W2030690537 @default.
- W1601438685 doi "https://doi.org/10.48550/arxiv.1002.0193" @default.
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