QCD Meets Gravity 2023

Session

Friday PM 1

15 Dec 2023, 14:00

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

Conveners

Friday PM 1: QCD

• David Kosower (Université Paris-Saclay (FR))

40. Multi-Leg Amplitudes in QCD

Simone Zoia

15/12/2023, 14:00

I review the recent advances in the computation of QCD scattering amplitudes at the high multiplicity frontier. Their computation is hindered by both algebraic and analytic complexity, making them one of the main bottlenecks to obtaining predictions at the next to-next-to-leading order in QCD for many interesting LHC processes. The last few years have seen dramatic progress in this direction,...

41. Special Functions for Five-Point One-Mass Scattering in QCD

Vasily Sotnikov (University of Zurich (UZH))

15/12/2023, 14:30

I will present the recent computation of a complete set of the two-loop five-point Feynman integrals with one external mass. Employing the method of canonical differential equations and the properties of Chen's iterated integrals, we construct a basis of special functions that greatly facilitates the calculation of scattering amplitudes, and is amenable for applications in NNLO QCD...

42. QCD in the Cores of Neutron Stars

Eero Aleksi Kurkela

15/12/2023, 15:00

Gravity meets QCD in a very concrete way in neutron stars. Their cores contain ultra-dense hadronic matter whose densities reach as high as those realized in ultrarelativistic heavy-ion collisions at the LHC. In these collisions, ordinary nuclear matter melts into a new quark matter phase. This naturally raises the question: Does quark matter also exist inside neutron stars? The rapid...