QCD Meets Gravity 2023

Session

Wednesday AM 2

13 Dec 2023, 10:45

4/3-006 - TH Conference Room (CERN)

Conveners

Wednesday AM 2: Software Tools

• Marcus Spradlin

24. Parton Showering Meets QCD

Gregory Soyez (IPhT, CEA Saclay)

13/12/2023, 10:45

Monte Carlo event generators are central tools in today's particle physics community. In this talk, I will focus on their central part, the parton shower algorithm. I will discuss how, from a perturbative QCD standpoint, one can define, assess and improve their (logarithmic) accuracy.

23. Computing Pinched Feynman Integrals and the Method of Regions

Stephen Philip Jones (University of Durham (GB))

13/12/2023, 11:15

Sector decomposition is a well known method for numerically computing Feynman integrals. In the physical (Minkowski) region, it is sometimes necessary to deform the integration contour into the complex plane in order to avoid poles, or more generally singular hypersurfaces, in the integration domain. However, there exist Feynman integrals with `pinched' singularities, for which the usual...