Multi-particle correlations and KNO scaling in the medium-induced jet evolution

Probabilistic picture for medium-induced jet evolution

A high energy jet that propagates in a dense medium generates a cascade of partons that can be described as a classical branching process. A simple generating functional for the probabilities to observe a given number of gluons at a given time is derived. This is used to obtain an evolution equation for the inclusive one-gluon distribution, that takes into account the dependence upon the energy...

KNO scaling 30 years later

KNO scaling, i.e. the collapse of multiplicity distributions Pn onto a universal scaling curve manifests when Pn is expressed as the distribution of the standardized multiplicity (n− c)/λ with c and λ being location and scale parameters governed by leading particle effects and the growth of average multiplicity. At very high energies, strong violation of KNO scaling behavior is observed (pp̄) an...

Cumulant versus jet-like three-particle correlations

Identified Particle Spectra and Jet Interactions with the Medium

Through a combination of detector upgrades and advancements in analysis techniques, physicist at RHIC are extending their ability to identify particles at high p T. With these new capabilities some outstanding questions are being addressed: particularly regarding baryon production. Here I present an overview of new data on identified particle elliptic flow (v 2), identified particle p T spectra...

A Four Component Picture for Jet Induced Correlations in Heavy Ion Collisions? Recent Results on Two and Three Particle Correlations

These proceedings review recent results from two and three particle correlations in heavy ion collisions. In particular we discuss the modified structure of the away side jet correlations. Under the assumption that the away side can be decomposed into a punch through component at ∆φ = π and a shoulder component with a peak displaced from π many similar properties are observed between the ridge ...