%0 Electronic Article
%A Ablinger, J.
%A Blümlein, J.
%A De Freitas, A.
%A Goedicke, A.
%A Schneider, C.
%A Schönwald, K.
%A Wißbrock, F.
%T The massive 3-loop operator matrix elements with two masses and the generalized variable flavor number scheme
%N DESY-17-201
%M PUBDB-2017-13400
%M DESY-17-201
%M DO-TH-17-34
%M arXiv:1712.00745
%D 2017
%Z RADCOR 2017
%X We report on our latest results in the calculation of the two-mass contributions to 3-loop operator matrix elements (OMEs). These OMEs are needed to compute the corresponding contributions to the deep-inealstic scattering structure functions and to generalize the variable flavor number scheme by including both charm and bottom quarks. We present the results for the non-singlet and A<sub>gq,Q</sub> OMEs, and compare the size of their contribution relative to the single mass case. Results for the gluonic OME A<sub>gg,Q</sub> are given in the physical case, going beyond those presented in a previous publication where scalar diagrams were computed. We also discuss our recently published two-mass contribution to the pure singlet OME, and present an alternative method of calculating the corresponding diagrams.
%F PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
%9 PreprintReport
%R 10.3204/PUBDB-2017-13400
%U https://bib-pubdb1.desy.de/record/397753