A. De Freitas

activity

19992026

most citedSupersymmetric Regularization, Two-Loop QCD Amplitudes and Coupling Shifts

204 citations · 1.4k across the 24 of their papers we have counts for

collaborators

Showing 2019Show all

4 papers · 1 filter

hep-ph2019

Revisiting the $O (α^{2})$ Initial State QED Corrections to $e^{+} e^{-}$ Annihilation into a Neutral Boson

J. Blümlein, A. De Freitas, C. G. Raab +1

At $e^{+} e^{-}$ colliders the QED--initial state radiation forms a large part of the radiative corrections. Their precise and fast evaluation is an essential asset for the experime…

hep-ph2019★ 16 cited

The effects of $O (α^{2})$ initial state QED corrections to $e^{+} e^{-} \to γ^{} / Z^{}$ at very high luminosity colliders

J. Blümlein, A. De Freitas, C. G. Raab +1

We present numerical results on the recently completed $O (α^{2})$ initial state corrections to the process $e^{+} e^{-} \to γ^{*} / Z^{*}$ , which is a central process at past and future…

hep-ph2019★ 17 cited

The unpolarized two-loop massive pure singlet Wilson coefficients for deep-inelastic scattering

J. Blümlein, A. De Freitas, C. G. Raab +1

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 thr…

hep-ph2019★ 28 cited

The $O (α^{2})$ Initial State QED Corrections to $e^{+} e^{-}$ Annihilation to a Neutral Vector Boson Revisited

J. Blümlein, A. De Freitas, C. G. Raab +1

We calculate the non-singlet, the pure singlet contribution, and their interference term, at $O (α^{2})$ due to electron-pair initial state radiation to $e^{+} e^{-}$ annihilation into a…

Revisiting the O(α2) Initial State QED Corrections to e+e− Annihilation into a Neutral Boson

The effects of O(α2) initial state QED corrections to e+e−→γ∗/Z∗ at very high luminosity colliders

The unpolarized two-loop massive pure singlet Wilson coefficients for deep-inelastic scattering

The O(α2) Initial State QED Corrections to e+e− Annihilation to a Neutral Vector Boson Revisited

Revisiting the $O (α^{2})$ Initial State QED Corrections to $e^{+} e^{-}$ Annihilation into a Neutral Boson

The effects of $O (α^{2})$ initial state QED corrections to $e^{+} e^{-} \to γ^{} / Z^{}$ at very high luminosity colliders

The $O (α^{2})$ Initial State QED Corrections to $e^{+} e^{-}$ Annihilation to a Neutral Vector Boson Revisited