# Coulomb-free and Coulomb-distorted recolliding quantum orbits in photoelectron holography. (arXiv:1802.00789v1 [physics.atom-ph] CROSS LISTED)

We perform a detailed analysis of the different types of orbits in the

Coulomb Quantum Orbit Strong-field Approximation (CQSFA), ranging from direct

to those undergoing hard collisions. We show that some of them exhibit clear

counterparts in the standard formulations of the strong-field approximation for

direct and rescattered above-threshold ionization, and show that the standard

orbit classification commonly used in Coulomb-corrected models is

over-simplified. We identify several types of rescattered orbits, such as those

responsible for the low-energy structures reported in the literature, and

determine the momentum regions in which they occur. We also find formerly

overlooked interference patterns caused by backscattered, Coulomb-corrected

orbits and assess their effect on photoelectron angular distributions. These

orbits improves the agreement of photoelectron angular distributions computed

with the CQSFA with the outcome of ab-initio methods for high-energy

phtotoelectrons perpendicular to the field-polarization axis.