This book offers a comprehensive and authoritative survey of current research on ion–atom and ion–molecule collision dynamics across a wide range of energies. The volume brings together contributions from leading experts who present theoretical frameworks, computational methodologies, and experimental advances for understanding single and multiple electronic processes (charge exchange, ionization, etc.). The chapters cover both light and heavy projectiles impacting on atoms and molecules, providing detailed approaches and discussions on semiclassical, quantum, and molecular dynamics as well as on their astrophysical and biomedical relevance and applications.By integrating perspectives from theory, stochastic simulation, and experiment, this book highlights the fundamental mechanisms underlying collisional processes. It emphasizes the connections between atomic-scale dynamics and broader ramifications. Various topics dealing with high-precision measurements as well as with perturbative and non-perturbative theories and versatile computational methods are treated with depth and clarity. This volume will serve as an invaluable reference for physicists, chemists, and interdisciplinary researchers engaged in atomic and molecular collision physics, plasma diagnostics, as well as in radiation science, fusion research and radiotherapy, thus offering both a state-of-the-art overview and insights into future directions of the field.
