HEP Lattice·hep-lat
2 papers—2 primary·0 cross-listed·reconstructed*
This talk reviews recent lattice QCD calculations relevant for quark flavor physics. Since lattice results must be accurate and precise to play a definitive role in phenomenology, the focus is on unquenched results of quantities which can be calculated most reliably.
M. Göckeler🇩🇪 · R. Horsley🇬🇧 · H.Perlt🇩🇪 · P. E. L. Rakow🇬🇧 · A. Schäfer🇩🇪 · G. Schierholz🇩🇪 · A. Schiller🇩🇪
We calculate the non-forward quark matrix elements of operators with two covariant derivatives needed for the renormalisation of the second moment of generalised parton distributions in one-loop lattice perturbation theory using Wilson fermions. For some representations of the hypercubic group commonly used in simulations we determine the sets of all possible mixing operators. For those representations the one-loop mixing matrices of renormalisation factors are found. Due to non-vanishing contributions of operators with external ordinary derivatives the number of contributing operators increases compared to forward matrix elements.
* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.