Document Type



Measurements of angular distributions of K-shell electrons photoejected from molecular nitrogen are reported which reveal large deviations at relatively low photon energies ( ħω≤500eV) from emission patterns anticipated from the dipole approximation to interactions between radiation and matter. A concomitant theoretical analysis incorporating the effects of electromagnetic retardation attributes the observed large nondipole behaviors in N2 to bond-length-dependent terms in the E1⊗(E2,M1) photoelectron emission amplitudes which are indicative of a potentially universal nondipole behavior in molecular photoionization.


Atomic, Molecular and Optical Physics | Inorganic Chemistry | Nuclear | Physical Chemistry


Also published in:

ALS Activity Report, Science Highlights 2002, p. 52, June 2003


Copyright American Physical Society. Used with permission.