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On Apr 19, 2013, at 10:17 AM, Jens Erler <[log in to unmask]> wrote: > Hi, > > I also see alpha_s less of a concern. The alpha_s value from the Z-lineshape has > currently a negligible theory error, so it is especially here that I would expect great > improvement. If one then also gets alpha_s to per mille precision from event shapes, > one would even gain another independent EW observable to very high precision. > But one needs a plausible avenue to credibly improve Delta alpha (M_Z) what about computing Delta alpha (MZ) using lattice QCD for the non-perturbative hadronic loops? regards, Ashutosh ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the SNOWMASS-ELECTROWEAK list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=SNOWMASS-ELECTROWEAK&A=1