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arxiv: 1305.4575 · v2 · pith:TB4QWBZTnew · submitted 2013-05-20 · ✦ hep-ph · nucl-ex· nucl-th

Multichannel parametrization of bar K N scattering amplitudes and extraction of resonance parameters

H. Zhang , J. Tulpan , M. Shrestha , D. M. Manley This is my paper
classification ✦ hep-ph nucl-exnucl-th
keywords multichannelparametersresonanceamplitudesparametrizationpartial-wavescatteringagreement
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We present results of a new multichannel partial-wave analysis for $\bar K N$ scattering in the c.m.\ energy range 1480 to 2100 MeV. Resonance parameters were extracted by fitting partial-wave amplitudes from all considered channels using a multichannel parametrization that is consistent with $S$-matrix unitarity. The resonance parameters are generally in good agreement with predictions of the Koniuk-Isgur quark model.

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