Full lattice QCD study of the κ scalar meson

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FU Zi-Wen and Carleton DeTar. Full lattice QCD study of the κ scalar meson[J]. Chinese Physics C, 2011, 35(12): 1079-1083. doi: 10.1088/1674-1137/35/12/001
FU Zi-Wen and Carleton DeTar. Full lattice QCD study of the κ scalar meson[J]. Chinese Physics C, 2011, 35(12): 1079-1083.  doi: 10.1088/1674-1137/35/12/001 shu
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Received: 2011-03-07
Revised: 2011-04-07
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Full lattice QCD study of the κ scalar meson

    Corresponding author: FU Zi-Wen,
    Corresponding author: Carleton DeTar,

Abstract: We studied the κ light scalar meson in 2+1 flavor full QCD with sufficiently light u and d quarks. Via lattice simulation we measured the correlators for the κ channel in the “Asqtad” improved staggered fermion formulation. After chiral extrapolation we obtained the mass of the κ meson with 826±119 MeV, which is within recent experimental values of 800-900 MeV. The simulations were carried out with the MILC 2+1 flavor gauge configurations at lattice spacing a ≈ 0.15 fm.

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