Gian Fausto Dell'Antonio, Gianluca Panati
Zero-energy resonances and the flux -across-surfaces theorem
(396K, Postscript)

ABSTRACT.  The flux-across-surfaces conjecture represents a corner stone in quantum 
scattering theory because it is the key-assumption needed to prove the usual 
relation between differential cross section and scattering amplitude. We 
improve a recent result by proving the conjecture also in 
presence of zero-energy resonances or eigenvalues, both in point and 
potential scattering.