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arxiv: 1011.1208 · v1 · pith:ELI67IKKnew · submitted 2010-11-04 · ✦ hep-lat

Heavy-light current-current correlators

(HPQCD Collaboration) Jonna Koponen , Christine T. H. Davies , Kent Hornbostel , Eduardo Follana , G. Peter Lepage , Craig McNeile , Junko Shigemitsu , Matthias Steinhauser This is my paper
classification ✦ hep-lat
keywords heavy-lightcasecorrelatorscurrent-currentfirsthisqmethodresults
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The current-current correlator method has been used successfully to obtain very accurate results for quark masses and the coupling alpha_s. The calculations were done using Highly Improved Staggered Quarks (HISQ) and heavy-heavy meson correlators. We now extend this work to the significantly more challenging heavy-light case, reporting the first results here. The aim is to determine nonperturbative Z factors for NRQCD heavy-light currents, but first we test the method in the HISQ case where Z=1.

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