TY  - EJOUR
AU  - Ablinger, J.
AU  - Blümlein, J.
AU  - De Freitas, A.
AU  - Goedicke, A.
AU  - Schneider, C.
AU  - Schönwald, K.
AU  - Wißbrock, F.
TI  - The massive 3-loop operator matrix elements with two masses and the generalized variable flavor number scheme
IS  - DESY-17-201
M1  - PUBDB-2017-13400
M1  - DESY-17-201
M1  - DO-TH-17-34
M1  - arXiv:1712.00745
PY  - 2017
N1  - RADCOR 2017
AB  - 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.
LB  - PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
DO  - DOI:10.3204/PUBDB-2017-13400
UR  - https://bib-pubdb1.desy.de/record/397753
ER  -