The complete O(αs2) non-singlet heavy flavor corrections to the structure functions g1,2ep(x,Q2), F1,2,Lep(x,Q2), F1,2,3ν(ν¯)(x,Q2) and the associated sum rules

Autor: Johannes Blümlein, Giulio Falcioni, Abilio De Freitas

Publikováno v: Nuclear Physics B, Vol 910, Iss C, Pp 568-617 (2016)

We calculate analytically the flavor non-singlet O(αs2) massive Wilson coefficients for the inclusive neutral current non-singlet structure functions F1,2,Lep(x,Q2) and g1,2ep(x,Q2) and charged current non-singlet structure functions F1,2,3ν(ν¯)p

Externí odkaz: https://doaj.org/article/2f1105acb3164416b50e1b67ed14f981

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

Autor: Clemens G. Raab, Johannes Blümlein, Abilio De Freitas, Kay Schoenwald

Publikováno v: Proceedings of 14th International Symposium on Radiative Corrections — PoS(RADCOR2019).

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 experiments at LEP, the ILC and the FCC-ee, operating at high luminosity. A lo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddb453c7f66f8d3dc1c051356b8fb463
https://doi.org/10.22323/1.375.0046

Heavy Flavor Wilson Coefficients in Deep-Inelastic Scattering: Recent Results

Autor: Andreas von Manteuffel, Carsten Schneider, Jakob Ablinger, Johannes Bluemlein, A. Behring, Abilio De Freitas

Publikováno v: Scopus-Elsevier

We present recent analytic results for the 3-loop corrections to the massive operator matrix element $A_{Qg}^{(3)}$for further color factors. These results have been obtained using the method of arbitrarily large moments. We also give an overview on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f04475fec757cf6b169c15d75c01fb0c

A toolbox to solve coupled systems of differential and difference equations

Autor: Abilio De Freitas, Jakob Ablinger, Carsten Schneider, Johannes Bluemlein

Publikováno v: Proceedings of Science (2016). doi:10.22323/1.235.0060
Scopus-Elsevier
Proceedings of 12th International Symposium on Radiative Corrections (Radcor 2015) and LoopFest XIV (Radiative Corrections for the LHC and Future Colliders) — PoS(RADCOR2015)-Sissa Medialab Trieste, Italy, 2016.-ISBN-doi:10.22323/1.235.0060
Proceedings of 12th International Symposium on Radiative Corrections (Radcor 2015) and LoopFest XIV (Radiative Corrections for the LHC and Future Colliders) — PoS(RADCOR2015)-Sissa Medialab Trieste, Italy, 2016.-ISBN-doi:10.22323/1.235.006012th International Symposium on Radiative Corrections and LoopFest XIV (Radiative Corrections for the LHC and Future Colliders), Radcor 2015, Los Angeles, USA, 2015-06-15-2015-06-19

We present algorithms to solve coupled systems of linear differential equations, arising in the calculation of massive Feynman diagrams with local operator insertions at 3-loop order, which do {\it not} request special choices of bases. Here we assum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40849da89c581960c3c2b9fd4ce3bb54
https://doi.org/10.22323/1.235.0060

Recent progress on the calculation of three-loop heavy flavor Wilson coefficients in deep-inelastic scattering

Autor: Clemens G. Raab, Johannes Bluemlein, Jakob Ablinger, Andreas von Manteuffel, Fabian Wissbrock, M. Round, A. Behring, Carsten Schneider, Abilio De Freitas, A. Hasselhuhn

Publikováno v: Scopus-Elsevier
Proceedings of Science 2014, 041 (2014). doi:10.22323/1.211.0041
Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2014)-Sissa Medialab Trieste, Italy, 2014.-ISBN-doi:10.22323/1.211.0041
Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2014)-Sissa Medialab Trieste, Italy, 2014.-ISBN-doi:10.22323/1.211.004112th DESY Workshop on Elementary Particle Physics: Loops and Legs in Quantum Field Theory, LL2014, Weimar, Germany, 2014-04-27-2014-05-02

We report on our latest results in the calculation of the three-loop heavy flavor contributions to the Wilson coefficients in deep-inelastic scattering in the asymptotic region $Q^2 \gg m^2$. We discuss the different methods used to compute the requi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c38c865a9d837f46ee4307805879470
http://arxiv.org/abs/1407.3638