Two-loop helicity amplitudes for W/Z boson pair production in gluon fusion with exact top mass dependence
Abstract:
We compute the top quark contribution to the two-loop amplitudes for on-shell ${W/Z}$ boson pair production in gluon fusion, ${gg→WW}$ and ${gg→ZZ}$. Exact dependence on the top quark mass is retained, the bottom quark is considered massless. Integral reduction is performed numerically for each phase space point and the master integrals are evaluated using the auxiliary mass flow method. This allows for fast computation of the amplitudes to very high precision.
| Zugehörige Institution(en) am KIT | Institut für Theoretische Teilchenphysik (TTP) |
| Publikationstyp | Proceedingsbeitrag |
| Publikationsjahr | 2022 |
| Sprache | Englisch |
| Identifikator | ISSN: 1824-8039 KITopen-ID: 1000152519 |
| Erschienen in | Proceedings of Loops and Legs in Quantum Field Theory PoS (LL2022) |
| Veranstaltung | 16th Loops and Legs in Quantum Field Theory : Workshop on Elementary Particle Physics (LL 2022), Ettal, Deutschland, 25.04.2022 – 30.04.2022 |
| Verlag | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
| Seiten | Art.-Nr.: 030 |
| Serie | Pos proceedings of science ; 416 |
| Vorab online veröffentlicht am | 20.10.2022 |
| Nachgewiesen in | Dimensions Scopus |