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- W145589305 abstract "The observed mass pattern of scalar resonances below 1 GeV gives preference to the tetraquark assignment over the conventional $bar qq$ assignment for these states. We present a search for tetraquarks with isospins 0,1/2,1 in lattice QCD, where isospin channels 1/2 and 1 have not been studied before. Our simulation uses Chirally Improved fermions on quenched gauge configurations. We determine three energy levels for each isospin using the variational method. The ground state is consistent with the scattering state, while the two excited states have energy above 2 GeV. Therefore we find no indication for light tetraquarks at our range of pion masses 344-576 MeV." @default.
- W145589305 created "2016-06-24" @default.
- W145589305 creator A5037166305 @default.
- W145589305 date "2008-09-30" @default.
- W145589305 modified "2023-10-16" @default.
- W145589305 title "A lattice study of light scalar tetraquarks with isopins 0, 1/2 and 1" @default.
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- W145589305 doi "https://doi.org/10.48550/arxiv.0809.5134" @default.
- W145589305 hasPublicationYear "2008" @default.
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