ALBERTA-THY-02-14Prepared for submission to JHEP Bottom Quark Mass from Υ Sum Rules to O(α3s)

Abstract: We use the O(α3s) approximation of the heavy-quark vacuum polarization func-tion in the threshold region to determine the bottom quark mass from nonrelativistic Υ sum rules. We find very good stability and convergence of the perturbative series for the bottom quark mass in MS renormalization scheme. Our final result is mb(mb) = 4.169 ± 0.008th ± 0.002αs ± 0.002exp