The quark-gluon plasma is a hot and dense soup of quarks and gluons that was present in the first microseconds of the universe. Although quark-gluon plasma can be created in the laboratory, such as in the LHC and RHIC experiments, due to its short lifetime, the use of indirect methods for studying its properties is necessary.
Jets, formed at the time of the creation of the quark-gluon...
The phenomena of Jet Quenching, a key signature of the Quark-Gluon Plasma (QGP) formed in Heavy-Ion (HI) collisions, provides a window of insight into the properties of this primordial liquid. In this study, we rigorously evaluate the discriminating power of Energy Flow Networks (EFNs), enhanced with substructure observables, in distinguishing between jets stemming from proton-proton (pp) and...
Understanding the hadronization mechanism in Quantum Chromodynamics (QCD) remains a significant challenge due to its non-perturbative nature. Hadronization is typically described via phenomenological models in Monte Carlo event generators (such as PYTHIA and HERWIG), whose parameters need to be tuned to data. This work leverages jet substructure to probe underlying features of these...
The fast evolution of the QGP makes its interaction with jets an inherently time-dependent process. However, this crucial dimension is missing from current jet quenching measurements, which hence provide a mere average quantification of the medium properties. In this talk, we propose that jet substructure observables allow access to the QGP time structure. By identifying the recursive steps of...
The extended coloured medium, the Quark-Gluon Plasma (QGP), created in heavy-ion collisions offers a unique opportunity to examine the time structure of QCD radiation. Leveraging on new jet clustering tools [1], it is possible to generate a time-ordered sequence within jets that correlates with the QCD parton formation time. The concept of QCD parton formation time, though underexplored, is...
