  This paper introduces and applies a method for propagating changes in jet
energy corrections into a D0 top quark mass measurement. It will serve as a
source for the PRL presenting it's final results, and will be later published
in a journal, or as a part of the author's PhD thesis. Motivation for the
present measurement arises from the recalibration of the D0 flavor-dependent
jet energy corrections. The recalibration was driven by the observation that
the corrections for D0 Run IIb differ notably from those of Run IIa. The
recalibration analysis was able to show that the Run IIb corrections should
have resembled more those of Run IIa. The recalibrated jet energy corrections
have an influence on the reconstructed top quarks through the jets that are
produced in top quark decays. Hence, a change in the flavor-dependent jet
energy corrections implies the need to revise the top mass measurement,
performed by D0 in the lepton+jets channel. The D0 top mass average is almost
completely determined by this measurement, and hence it has a direct impact on
the top mass world average. A complete revision of the D0 top mass measurement
is unlikely to occur, and hence this paper demonstrates the resulting top mass
shift using a lighter methodology.
