title: Intensity-dependent electron mass shift in a laser field: existence, universality, and detection.
abstract: The electron mass shift in a laser field has long remained an elusive concept. We show that the mass shift can exist in pulses but that it is neither unique nor universal: it can be reduced by pulse shaping. We show also that the detection of mass shift effects in laser-particle scattering experiments is feasible with current technology, even allowing for the transverse structure of realistic beams.
authors.affiliation: Department of Physics, Umeå University, Umeå, Sweden. christopher.harvey@physics.umu.se
authors.forename: Chris
authors.initials: C
authors.lastname: Harvey
authors.forename: Thomas
authors.initials: T
authors.lastname: Heinzl
authors.forename: Anton
authors.initials: A
authors.lastname: Ilderton
authors.forename: Mattias
authors.initials: M
authors.lastname: Marklund