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Exceptional points in the scattering continuum

Abstract : The manifestation of exceptional points in the scattering continuum of atomic nucleus is studied using the real-energy continuum shell model. It is shown that low-energy exceptional points appear for realistic values of coupling to the continuum and, hence, could be accessible experimentally. Experimental signatures are proposed which include the jump by $2\pi$ of the elastic scattering phase shift and a salient energy dependence of cross-sections in the vicinity of the exceptional point.
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Preprints, Working Papers, ...
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Contributor : Michel Lion <>
Submitted on : Wednesday, September 16, 2009 - 10:12:21 AM
Last modification on : Monday, November 23, 2020 - 12:52:03 PM

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  • HAL Id : in2p3-00417506, version 1
  • ARXIV : 0909.2766



J. Okolowicz, M. Ploszajczak. Exceptional points in the scattering continuum. 2009. ⟨in2p3-00417506⟩



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