Abstract
In the LHC’s high-energy proton-proton collision experiments, a great amount of particles are produced after the interaction processes. To better understand the production mechanisms of such particles, it is convenient to study and characterize their topology. To do so, we shall study two-particle correlation functions. These functions are calculated with data generated by the PYTHIA event simulator, and in several different intervals of correlated particle’s transverse momentum. In this way, we may observe a particle jet structure, observed in the experiments and previewed by perturbative QCD, and how such structure is affected by different hadronization models.
Highlights
QCD – Quantum Chromodynamics is a quantum field theory, which describes the strong interaction between quarks and gluons
Our objective is to study jet structures using the twoparticle correlation method, which gives us functions that describe the topology of the produced particles
After characterizing the topology, we study how different hadronization models available at simulation, such as MPI and Colour Reconnection, affect our results
Summary
QCD – Quantum Chromodynamics is a quantum field theory, which describes the strong interaction between quarks and gluons. Perturbative QCD (pQCD), one of the theory’s methods, is valid only for high energies, and it is expected to describe some of the results observed in LHC’s experiments. A consequence of this theory is that high momentum quarks are first emitted and undergo fragmentation and hadronization processes afterwards. As hadrons are produced, they travel in approximately the same direction as the original quark, in what is called a “jet” structure.
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