Speaker
Description
Jets, collimated showers of particles originating from high-energy parton scatterings, are powerful probes for testing perturbative quantum chromodynamics (pQCD) in large momentum transfer ($Q^2$) events. They may also provide insights into the possible emergence of Quark-Gluon Plasma (QGP) in high-multiplicity events, through jet quenching phenomena, such as hadron-jet correlations.
The ALICE Collaboration commenced Run 3 with upgrades to the Inner Tracking System (ITS2) and the Time Projection Chamber (TPC), both pivotal for probing rare phenomena. The upgraded ITS2 enables higher tracking resolution, while the improvements to the TPC allow for continuous readout, significantly boosting data acquisition. Using these improvements, this work presents key studies: the measurement of inclusive charged-particle jet cross sections and exploration of jet quenching effects using hadron-jet observables in pp collisions at $\sqrt{s} = 13.6\ \mathrm{TeV}$. Using the anti-$k_{\rm T}$ algorithm at midrapidity with background subtraction, these results demonstrate the advanced jet-finding capabilities of ALICE and provide new insights into jet production, fragmentation, and the potential medium effects in high-energy hadron collisions.
