23–26 Sept 2025
DESY Hamburg
Europe/Berlin timezone

Invariant-Mass Threshold Resummation for Four Top-Quark Production at the LHC

24 Sept 2025, 14:45
15m
Bldg. 1b, seminar room 4b (DESY)

Bldg. 1b, seminar room 4b

DESY

Particle Phenomenology Parallel Sessions Wednesday Pheno 1

Speaker

Michele Lupattelli (University of Münster)

Description

The production of four top quarks is one of the rarest processes in the Standard Model, and it was finally observed in 2023 at the LHC. Studying this process offers valuable insights into the top-Higgs interaction and may reveal new physics. Thus, comparing theoretical predictions with current and future measurements is a crucial test for the Standard Model.
In this talk, I will present the most accurate QCD predictions to date for $t\bar{t}t\bar{t}$ production, obtained using invariant-mass threshold resummation at NLL' accuracy, matched to NLO. I will discuss results for both the total cross section and the invariant-mass distribution, highlighting their significance and the improvements made.

Author

Michele Lupattelli (University of Münster)

Presentation materials