Extraction of Hadron Interactions above Inelastic Threshold in Lattice QCD

Sinya Aoki , Noriyoshi Ishii , Takumi Doi , Tetsuo Hatsuda , Yoichi Ikeda , Takashi Inoue , Keiko Murano , Hidekatsu Nemura

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Kenji Sasaki (HAL QCD collaboration)

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classification ✦ hep-lat nucl-th

keywords abovehadroninelasticinteractionslatticeparticlethresholdamplitude

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We propose a new method to extract hadron interactions above inelastic threshold from the Nambu-Bethe-Salpter amplitude in lattice QCD. We consider the scattering such as $A+B\rightarrow C+D$, where $A,B,C,D$ are names of different 1-particle states. An extension to cases where particle productions occur during scatterings is also discussed.

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Extraction of Hadron Interactions above Inelastic Threshold in Lattice QCD

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