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Paper detail

The coupled-channel scattering on a torus

Based on the Hamiltonian formalism approach, a generalized Lüscher's formula for two particle scattering in both the elastic and coupled-channel cases in moving frames is derived from a relativistic Lippmann-Schwinger equation. Some strategies for extracting scattering amplitudes for a coupled-channel system from the discrete finite-volume spectrum are discussed and illustrated with a toy model of two-channel resonant scattering. This formalism will, in the near future, be used to extract information about hadron scattering from lattice QCD computations.

preprint2013arXivOpen access
Peng GuoJozef DudekRobert EdwardsAdam P. Szczepaniak
hep-phhep-lat
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Peng GuoJozef DudekRobert EdwardsAdam P. Szczepaniak

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