Quark mass dependence of light and heavy systems

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Guo, F.-K.
Hanhart, C.
Cleven, M
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American Institute of Physics
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The pion mass dependence of the pion vector form factor is investigated using the Omnes representation. Our prediction agrees with later lattice results quite well. The nice agreement of the pion mass dependence of the scattering lengths of the charmed mesons and light pseudoscalar mesons suggests that the D(s0)(2317)* be a DK bound state. Furthermore, it is argued that the kaon mass dependence of a kaonic bound state should be linear, and can be used as a criterion in determining the nature of such a bound state on lattice.
© 2011 American Institute of Physics. This work is partially supported by the Helmholtz Association through funds provided to the Virtual Institute “Spin and strong QCD” (VH-VI-231), by the DFG (TR 16, “Subnuclear Structure of Matter”), the European Community-Research Infrastructure Integrating Activity “Study of Strongly Interacting Matter” (acronym HadronPhysics2, Grant Agreement n. 227431) under the FP7 of the EU, and the BMBF (grant 06BN9006), and by grants FPA 2008-00592, FIS2008-01323 (Spain). International Conference on Quark Confinement and the Hadron Spectrum (9. 2010. Madrid, España)
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