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Paper detail

Running of the SF-coupling with four massless flavours

We discuss the status of different determinations of alpha_s, motivating a precise and reliable computation from lattice QCD. In order to suppress perturbative errors, the non-perturbative computation has to reach high energy scales mu. Such results already exist in the SF-scheme for N_f=0,2 and N_f=3. We recently added the running with four massless flavours in a range of alpha from about 0.07 to 0.3 . It is based on our recent determination of the Sheikholeslami Wohlert coefficient in the four-flavour theory.

preprint2010arXivOpen access
Rainer SommerFatih TekinUlli Wolff
hep-lat
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Rainer SommerFatih TekinUlli Wolff

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