Michael Fucilla, "The high-energy regime of QCD at the LHC and EIC"

jeudi 9 avr. 2026, 14:30 → 15:30 Europe/Paris

100/0-MXX - Salle des Conseils (IJCLab)

The center-of-mass energies reached at modern accelerators, such as the Large Hadron Collider (LHC), and those anticipated at next-generation facilities, such as the Electron–Ion Collider (EIC), provide a unique opportunity to explore hadronic matter under unprecedented conditions. In particular, they grant access to the so-called Regge–Gribov (or semi-hard) regime of QCD, characterized by the hierarchy of scales s >> Q^2 >> \Lambda_{QCD}^2, where \sqrt{s} denotes the center-of-mass energy, Q represents the hard scales of the process, and \Lambda_{QCD} is the QCD mass scale. This kinematic domain constitutes an ideal laboratory for some of the most fascinating phenomena of strong interactions. Among them is the rapid growth of the gluon density at small Bjorken-x, which is naturally described within the Balitsky–Fadin–Kuraev–Lipatov (BFKL) framework. At sufficiently high energies, however, this growth is expected to saturate, leading to the emergence of a novel state of hadronic matter—characterized by high parton densities and strong classical color fields—known as the Color Glass Condensate (CGC).

In this seminar, I will present selected aspects of high-energy QCD in both the BFKL and saturation regimes, with particular emphasis on recent developments at the precision frontier.

IJCLabTalk2026.pdf