Michael Krämer Fest

Session

Colloquium

19 Oct 2026, 16:30

28D 001 (Physikzentrum)

1. To see or not to see: the physics of what we don't observe

Eric Laenen (Nikhef National institute for subatomic physics (NL))

19/10/2026, 16:30

Every measurement in particle physics is shaped as much by what
escapes detection as by what is recorded. Soft gluons and photons can
go unseen, but they leave a universal imprint on the theoretical
predictions for almost all observables at the Large Hadron Collider
(LHC), for example. I will discuss how far this universality extends,
from the classic "soft theorems" to regions where the...