TY - JOUR
T1 - Kaon-nucleon potential from lattice QCD
AU - Ikeda, Y.
AU - Aoki, S.
AU - Doi, T.
AU - Hatsuda, T.
AU - Inoue, T.
AU - Ishii, N.
AU - Murano, K.
AU - Nemura, H.
AU - Sasaki, K.
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2010.
PY - 2010/4/12
Y1 - 2010/4/12
N2 - We study the K N interactions in the I(Jπ) = 0(1/2-) and 1(1/2-) channels and associated exotic state Θ+ from 2+1 flavor full lattice QCD simulation for relatively heavy quark mass corresponding to mπ = 871 MeV. The s-wave K N potentials are obtained from the Bethe-Salpeter wave function by using the method recently developed by HAL QCD (Hadrons to Atomic nuclei from Lattice QCD) Collaboration. Potentials in both channels reveal short range repulsions: Strength of the repulsion is stronger in the I = 1 potential, which is consistent with the prediction of the Tomozawa-Weinberg term. The I = 0 potential is found to have attractive well at mid range. From these potentials, the K N scattering phase shifts are calculated and compared with the experimental data.
AB - We study the K N interactions in the I(Jπ) = 0(1/2-) and 1(1/2-) channels and associated exotic state Θ+ from 2+1 flavor full lattice QCD simulation for relatively heavy quark mass corresponding to mπ = 871 MeV. The s-wave K N potentials are obtained from the Bethe-Salpeter wave function by using the method recently developed by HAL QCD (Hadrons to Atomic nuclei from Lattice QCD) Collaboration. Potentials in both channels reveal short range repulsions: Strength of the repulsion is stronger in the I = 1 potential, which is consistent with the prediction of the Tomozawa-Weinberg term. The I = 0 potential is found to have attractive well at mid range. From these potentials, the K N scattering phase shifts are calculated and compared with the experimental data.
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U2 - 10.1051/epjconf/20100303007
DO - 10.1051/epjconf/20100303007
M3 - Conference article
AN - SCOPUS:84921391923
SN - 2101-6275
VL - 3
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
M1 - 03007
T2 - 19th International IUPAP Conference on Few-Body Problems in Physics, Few-Body 2009
Y2 - 31 August 2009 through 5 September 2009
ER -