Speaker
Description
Investigating the modifications of jets and high-$p_T$ probes in small systems requires the integration of soft and hard physics. The recent advancements in the JETSCAPE framework have led to the development of an event generator that considers the correlations between soft and hard partons to study jet observables in small systems. This hybrid approach separates the multi-scale physics of the collision into several stages. First, hard scatterings are calculated using binary collision positions from the Glauber geometry, then they are propagated backward in space-time using an initial-state shower to determine the energies and momenta of the initiating partons. The energies and momenta are then subtracted from the incoming nucleons for soft-particle production, which is modeled using the 3D-Glauber + hydrodynamics + hadronic transport framework. The framework takes into account the non-trivial correlations between jet and soft particle production in small systems and is calibrated with measured event activity distributions in p+p collisions at 5.02 TeV. We present the resulting hadrons' $p_T$-spectra and compare the model with different observables at the LHC.
