We present the analytic calculation of the Master Integrals for the twoloop, non-planar topologies that enter the calculation of the amplitude for top-quark pair hadroproduction in the quark-annihilation channel. Using the method of differential equations, we expand the integrals in powers of the dimensional regulator ϵ and determine the expansion coefficients in terms of generalized harmonic polylogarithms of two dimensionless variables through to weight four.
Master Integrals for the two-loop, non-planar QCD corrections to top-quark pair production in the quark-annihilation channel / Becchetti, Matteo; Bonciani, Roberto; Casconi, Valerio; Ferroglia, Andrea; Lavacca, Simone; von Manteuffel, Andreas. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2019:8(2019), pp. 1-28. [10.1007/JHEP08(2019)071]
Master Integrals for the two-loop, non-planar QCD corrections to top-quark pair production in the quark-annihilation channel
Bonciani, RobertoVisualization
;Casconi, Valerio
Methodology
;Lavacca, SimoneMethodology
;
2019
Abstract
We present the analytic calculation of the Master Integrals for the twoloop, non-planar topologies that enter the calculation of the amplitude for top-quark pair hadroproduction in the quark-annihilation channel. Using the method of differential equations, we expand the integrals in powers of the dimensional regulator ϵ and determine the expansion coefficients in terms of generalized harmonic polylogarithms of two dimensionless variables through to weight four.| File | Dimensione | Formato | |
|---|---|---|---|
|
Becchetti_Master-Integrals_2019.pdf
accesso aperto
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Creative commons
Dimensione
566.39 kB
Formato
Adobe PDF
|
566.39 kB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
