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A dispersive formulation of the levinson theorem

Journal Article · · Il Nuovo Cimento
DOI:https://doi.org/10.1007/BF02787045· OSTI ID:4756164
The statement of the Levinson theorem on the relation between the scattering phase-shifts and the number of bound states is transferred in a dispersive language through a relation involving the unphysical discontinuity of the scattering amplitude, the residue of the bound state, and the binding energy. It is shown that the relation obtained are necessary and sufficient condition for the validity of the Levinson theorem. An example to illustrate this relation is give-n. (auth)
Research Organization:
Inst. for Advanced Study, Princeton, N.J.
Sponsoring Organization:
USDOE
NSA Number:
NSA-17-005228
OSTI ID:
4756164
Journal Information:
Il Nuovo Cimento, Journal Name: Il Nuovo Cimento Journal Issue: 2 Vol. 26; ISSN 1827-6121
Country of Publication:
Country unknown/Code not available
Language:
English

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