# 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

May 31, 2020 to June 5, 2020
Online
US/Central timezone

## Simple implementation of color coherence for the resumation of soft BDMPS-Z gluons

Jun 1, 2020, 1:55 PM
20m
https://cern.zoom.us/j/97217965575

#### https://cern.zoom.us/j/97217965575

Oral Presentation Jets and High Momentum Hadrons

### Speaker

João Barata (BNL and University of Santiago de Compostela/IGFAE)

### Description

The evolution of QCD jets under the influence of a dense colored medium leads to the non trivial modification of the emission spectrum. In the multiple soft scattering regime, for sufficiently large mediums, soft and wide angle emissions can be resummed, at large number of colors, since the emissions become independent up to $\tau_{br}/L$ corrections. Similarly to DGLAP evolution, such cascades correspond to pure Markovian processes and therefore interferences between partons are neglected. This constraint means that color coherence effects are absent. In the vacuum this coherence effect is critical to guarantee that the shower is angular ordered.
In this talk, we present a simple procedure to implement into the rate equations corrections coming from the color (de)coherence of the medium cascade. The final equation we obtain is remarkably simple and open to direct physical interpretation.

Contribution type Contributed Talk Jets and High Momentum Hadrons

### Primary authors

João Barata (BNL and University of Santiago de Compostela/IGFAE) Fabio Dominguez (Universidade de Santiago de Compostela) Víctor Vila (Universidade de Santiago de Compostela) Carlos Albert Salgado Lopez (Universidade de Santiago de Compostela (ES))

### Presentation materials

 HP20_Barata.pdf Recording