Speaker
Description
Jet substructure observables are sensitive to the effects arising from the mass of quarks produced by QCD hard-scattering interactions. In particular, QCD predicts the suppression of collinear emission around a massive quark, the so-called dead-cone effect, recently observed by the ALICE collaboration at the LHC.
In this talk we discuss how the quark mass affects the theoretical calculations of an event shape observable such as energy-energy correlation functions. In particular, we consider and resum the large logarithms involving the quark mass up to next-to-leading logarithmic accuracy, and investigate the differences between parton shower approaches to QCD radiation by massive quarks as implemented in Pythia and Herwig Monte Carlo event generators.
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