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1. The unpolarized two-loop massive pure singlet Wilson coefficients for deep-inelastic scattering / Blümlein, J. ; De Freitas, A. ; Raab, C.G. ; Schönwald, K.
We calculate the massive two–loop pure singlet Wilson coefficients for heavy quark production in the unpolarized case analytically in the whole kinematic region and derive the threshold and asymptotic expansions. [...]
Published in Nuclear Physics B 945 (2019) 10.1016/j.nuclphysb.2019.114659
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2. The O ( α 2 ) initial state QED corrections to e + e − annihilation to a neutral vector boson revisited / Blümlein, J. ; De Freitas, A. ; Raab, C.G. ; Schönwald, K.
We calculate the non-singlet, the pure singlet contribution, and their interference term, at O(α2) due to electron-pair initial state radiation to e+e− annihilation into a neutral vector boson in a direct analytic computation without any approximation. [...]
Published in Physics letters B 791 (2019) 206-209 10.1016/j.physletb.2019.02.038
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See also: similar author names
15 Raab, C.
1 Raab, Clemens
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