Three-step<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi mathvariant="normal">H</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>charge exchange injection with a narrow-band laser
Physical review special topics. Accelerators and beams