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Bound states in the B-matrix formalism for the three-body scattering

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 نشر من قبل Sebastian Dawid
 تاريخ النشر 2020
  مجال البحث
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We consider a model of relativistic three-body scattering with a bound state in the two-body sub-channel. We show that the naive K-matrix type parametrization, here referred to as the B-matrix, has nonphysical singularities near the physical region. We show how to eliminate such singularities by using dispersion relations and also show how to reproduce unitarity relations by taking into account all relevant open channels.



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