Conveners
Parallel 32: hadronization
- Julia Velkovska (Vanderbilt University (US))
The production mechanism of (anti)nuclei in ultrarelativistic hadronic collisions is under intense debate in the scientific community. Two successful models used for the description of the experimental measurements are the statistical hadronisation model and the coalescence approach. In the latter, multi-baryon states are assumed to be formed by coalescence of baryons that are close in...
Jet substructure observables can reveal details of the parton fragmentation and hadronization processes that create a jet. We measure a new substructure observable, the charge correlator ratio ($r_c$), that characterizes the fraction of string-like fragmentation by distinguishing the charge signs of leading and subleading charged particles within jets. This can further our understanding of...
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...
In the last years, several exotic hadrons have been observed in the charm sector; such particles cannot be interpreted as conventional baryons or mesons and are thought to be either quark bags or molecular states. To unveil their nature, it is crucial to experimentally constrain the strong force that governs the interaction between the charm hadrons and other hadrons, for instance, by...
The recent CMS measurements of high multiplicity jets have revealed intriguing structures in two-particle correlations within jets with over 80 charged tracks, which may suggest the existence of final state interactions other than those considered in current parton shower programs. We investigate whether two final-state interaction mechanisms that may become important when the phase-space...
