LoopFest XX

Session

Saturday Morning Session 2

14 May 2022, 11:00

Benedum Hall 157 (University of Pittsburgh)

120. Integrand Basis at 2 Loops

Jacob Bourjaily (Penn State University)

14/05/2022, 11:00

121. The duals of Feynman integrals

Andrzej Pokraka (McGill University)

14/05/2022, 11:25

72. Multi-scale Feynman integrals contributing to mixed QCD EW corrections to H-> Z Z*

Ekta Chaubey, Ina Hoenemann, ekta chaubey (Institute of Physics, JGU, Mainz)

14/05/2022, 11:50

I present new analytic results for Feynman integrals that contribute to mixed QCD-EW corrections to partial decay width for 𝐻→𝑍𝑍*. These corrections include the massive top-quark contributions. The analytic computation of these integrals is challenging due to the presence of many massive scales. These two-loop integrals are solved using the method of differential equations by bringing them to...

117. Local Unitarity: a locally infrared-finite representation of differential cross-sections

Valentin Hirschi (ETHZ - ETH Zurich), Valentin Hirschi (Unknown-Unknown-Unknown)

14/05/2022, 12:10

It is well-known that perturbative expansions of QFT observable suffer from infrared (IR) divergences both in the phase-space of real-emission contributions and in the loop amplitudes of virtual contributions.
Traditionally, the two are handled separately through a combination of local subtraction counterterm and dimensional regulation.
Local Unitarity is an alternative formulation using the...