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Freiburg 1999 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 3: Theorie I

HK 3.7: Talk

Monday, March 22, 1999, 15:45–16:00, A

Meson-Antimeson Potentials in Different Isospin Channels from Lattice QCD — •H.R. Fiebig1, H. Markum2, A. Mihály3, and K. Rabitsch21Physics Department, FIU - University Park, Miami, Florida 33199, USA — 2Institut für Kernphysik, Technische Universität, A-1040 Vienna, Austria — 3Department of Theoretical Physics, Lajos Kossuth University, H-4010 Debrecen, Hungary

A local potential for the residual mesons-antimeson interaction with mesons consisting of a heavy and a light quark is computed in quenched lattice QCD with Kogut-Susskind fermions. We start from the time-correlation function of the corresponding two-hadron system without free parameters. We project into the I=0 and I=1 isospin channels. Attractive potentials for short distances are obtained indicating the absence of resonant states.

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