In the paper http://hamilton.uchicago.edu/~harvey/pdf_files/harvey_turner_1990.pdf, it can be seen from expressions (9a, 9b,9c) that barygon asymmetry is proportional to negative lepton asymmetry. But in a model where leptogensis is generated and L >0, we get negative B. But this contradicts observation. Many papers I read seem not to elaborate on this point.
I am confused about this result and interpretation.