LoopFest XX

Session

Thursday Afternoon Session 2

May 12, 2022, 4:30 PM

Benedum Hall 157 (University of Pittsburgh)

105. Recent Progress in Two-Loop Five-Point Calculations

Ben Page (CERN)

5/12/22, 4:30 PM

94. Two-loop QCD corrections to five-particle amplitudes with one massive leg

Simone Zoia

5/12/22, 4:55 PM

I discuss the recent advances in the analytic computation of two-loop scattering amplitudes for five-particle processes with one external massive leg. The latter are crucial ingredients to obtain NNLO QCD predictions for many interesting LHC processes. I present a basis of transcendental functions which enables a fast and stable evaluation of all the required planar Feynman integrals, and a...

110. Wilson loops with Lagrangian insertions, and a prediction for all-plus amplitudes

Johannes Henn

5/12/22, 5:20 PM

76. Non-factorisable contributions to t-channel single-top production

Jérémie Quarroz

5/12/22, 5:45 PM

Single top quark is mainly produced through the t-channel W boson exchange q + b -> q + t at LHC. This process probes Wtb vertex directly and can be used to measure the CKM matrix element Vtb or constrain the bottom quark PDF. The non-factorisable contributions are the last missing piece of the NNLO QCD correction. In this talk, I will first motivate the computation of these corrections, then...

108. Automating Antenna Subtraction in Colour Space

Matteo Marcoli

5/12/22, 6:05 PM