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Hi all,

I would like to encourage you to have a look into
hep-ph/0308165, a new paper from Uraltsev and Bigi,
concerning a possible bias in the extraction of Lambda
from the photon energy spectrum in b->sg. Since <Eg> is a very important
ingredient in the extraction of the CLEO's Lambda it might be worthwhile to
check by how much the Vub results (and error) change. Given the fact, that
there is now also strong evidence that the lepton moment fit from CLEO
has underestimated the theoretical errors for P*=1.5, it will be
interesting to see the impact of

Lambda(1/mb^3) = ~500 MeV   (before 390 MeV)
l1    (1/mb^3) = -0.3 GeV^2 (before -0.25 GeV^2)

on the Vub analysis.

As far as correlation and errors are concerned, to first order, you can
just keep the CLEO numbers. Please keep also in mined that the above
mentioned values are obtained from O(1/mb^3) calculations. You still
have to translate them to O(1/mb^2) for your analysis (first order
approximation - just shift your Lambda(1/mb^2) by ~100 MeV upwards
and l1 by ~50 MeV)



Oliver