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arXiv · 1102.5408

An extension to the Luscher's finite volume method above inelastic threashold (formalism)

Noriyoshi Ishii·for HAL-QCD Collaboration
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Abstract

An extension of the Luscher's finite volume method above inelastic thresholds is proposed. It is fulfilled by extendind the procedure recently proposed by HAL-QCD Collaboration for a single channel system. Focusing on the asymptotic behaviors of the Nambu-Bethe-Salpeter (NBS) wave functions (equal-time) near spatial infinity, a coupled channel extension of effective Schrodinger equation is constructed by introducing an energy-independent interaction kernel. Because the NBS wave functions contain the information of T-matrix at long distance, S-matrix can be obtained by solving the coupled channel effective Schrodinger equation in the infinite volume.

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BibTeXRIS

Noriyoshi Ishii, for HAL-QCD Collaboration. 2011-02-26. An extension to the Luscher's finite volume method above inelastic threashold (formalism). https://arxiv.org/abs/1102.5408

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