NT/RBRC hybrid seminar

"Looking for evidence of color decoherence in jet observables"

Presented by Daniel Pablos Alfonso

Friday, March 10, 2023, 11:00 am — Large Seminar Room, Bldg. 510

Abstract: Jets are multi-partonic systems obeying the DGLAP evolution. Within a deconfined medium such as the one produced in modern colliders, the earliest stages of this evolution happen approximately as in vacuum. This high-virtuality evolution is determinant to understand the physics of energy loss of the jet as a whole. Depending on the ability of the medium to resolve the internal structure of a jet, via the loss of color coherence due to multiple soft scatterings, one expects that jets with different high-virtuality evolutions should be quenched differently. In this talk I will review recent progress on the phenomenology aimed at accessing the physics of color decoherence in heavy-ion collisions. The projected luminosities for future runs at RHIC and the LHC will allow to obtain great precision also in more differential observables. I will exploit this by discussing how to disentangle between the biases induced by color charge effects and those induced by decoherence effects, as well as by presenting the interplay between jet azimuthal anisotropy and the marked path-length dependence of the coherence critical angle.

Hosted by: Yacine Mehtar-Tani

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