We obtain the exact Green function for excited-state geminate reversible di
ssociation with two different lifetimes and quenching in one dimension, in
the absence of a potential of interaction. We consider the ground-state and
irreversible reactions as special limits, and investigate the long time as
ymptotic behavior in comparison with that observed in three dimensions. (C)
1999 American Institute of Physics. [S0021-9606(99)50633-8].