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Heavy quarks created in heavy-ion collisions serve as an excellent probe of the produced quark-gluon plasma (QGP). The radiation pattern of jets formed from heavy quarks as they traverse the QGP exhibits a particularly interesting structure due to the interplay of two competing effects: the suppression of small-angle radiation, also known as the “dead-cone” effect, and the enhancement of emitted gluons by medium-induced radiation.
Abstract Final states in collider experiments are characterized by correlation functions, ⟨E(n→1)⋯E(n→k)⟩, of the energy flow operator E(n→i). We show that the top quark imprints itself as a peak in the three-point correlator at an angle ζ∼mt2/pT2, with mt the top quark mass and pT its transverse momentum, providing access to one of the most important parameters of the Standard Model in one of the simplest field theoretical observables.
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