TY - GEN
T1 - Searching for tetraquarks on the lattice
AU - Prelovsek, S.
AU - Draper, T.
AU - Lang, C. B.
AU - Limmer, M.
AU - Liu, K. F.
AU - Mathur, N.
AU - Mohler, D.
PY - 2010
Y1 - 2010
N2 - We address the question whether the lightest scalar mesons σ and κraquarks. We present a search for possible light tetraquark states with JPC = 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 π (k) π (-k) or K(k) π (-k) with back-to-back momentum k = 0, 2 π /L,. However, we find an additional light state in the I = 0 and I = 1/2 channels, which may be related to the observed resonancesπ and π 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.
AB - We address the question whether the lightest scalar mesons σ and κraquarks. We present a search for possible light tetraquark states with JPC = 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 π (k) π (-k) or K(k) π (-k) with back-to-back momentum k = 0, 2 π /L,. However, we find an additional light state in the I = 0 and I = 1/2 channels, which may be related to the observed resonancesπ and π 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.
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U2 - 10.3204/DESY-PROC-2010-04/P37
DO - 10.3204/DESY-PROC-2010-04/P37
M3 - Conference contribution
AN - SCOPUS:84884299145
SN - 9783935702492
T3 - Proceedings of 24th International Symposium on Lepton-Photon Interactions at High Energy, LP 2009
SP - 508
EP - 510
BT - Proceedings of 24th International Symposium on Lepton-Photon Interactions at High Energy, LP 2009
T2 - 24th International Symposium on Lepton-Photon Interactions at High Energy, LP 2009
Y2 - 17 August 2009 through 22 August 2009
ER -