Rakityansky, Sergei Anatoljevich; Elander, N.(Institute of Physics, 2012-03)
For a two-dimensional quantum-mechanical problem, we obtain a generalized
power series expansion of the S-matrix that can be done near an arbitrary point
on the Riemann surface of the energy, similar to the standard ...
Rakityansky, Sergei Anatoljevich; Elander, N.(American Institute of Physics, 2013-12-31)
A quantum system is considered that can move in N two-body channels with the
potentials that may include the Coulomb interaction. For this system, the Jost matrix
is constructed in such a way that all its dependencies ...
Rakityansky, Sergei Anatoljevich; Elander, N.(World Scientific, 2013)
Within the proposed method, a set of experimental data points are fitted using a
multi-channel S-matrix. Then the resonance parameters are located as its poles on an
appropriate sheet of the Riemann surface of the ...
Rakityansky, Sergei Anatoljevich; Elander, N.(IOP Publishing, 2011)
Similarly to the standard effective range expansion that is done near the threshold
energy, we obtain a generalized power-series expansion of the multi-channel Jost-
matrix that can be done near an arbitrary point on the ...
