Master integrals for $O(\alpha \alpha_s)$ corrections to $H > ZZ*$

Particle Physics Theory seminar

Master integrals for $O(\alpha \alpha_s)$ corrections to $H > ZZ*$

• Event time: 2:00pm until 3:00pm
• Event date: 28th September 2022
• Speaker: Mandeep Kaur (IISER Mohali)
• Location: Higgs Centre Seminar Room, Room 4305,

Event details

The differential equation method has gained much momentum in recent years for the computation of 2- and higher-loop Feynman integrals and understanding their geometrical aspects. In my talk, after summarising the method of differential equations and its technical details, I will represent its application to compute the 2-loop master integrals keeping the full mass dependence that appear in $O(\alpha \alpha_s)$ corrections to $H > ZZ*$ decay (arxiv: 2205.06339). I will also discuss the difficulties we encounter due to the presence of multiple mass scales. Finally, I will represent the results of master integrals obtained in terms of Chen-iterated integrals with dlog-one forms.