# Effects of in-medium k_T broadening on di-jet observables

- Institution: CERN
- Department: Conferences
- Speaker: Martin Rohrmoser
- Year: 2020
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3000680)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

---------- Heavy ion collisions at high energies can be used as an interesting way to recreate and study the medium of the quark-gluon plasma (QGP). We particularly investigate the jets produced in hard binary collisions and their interactions with a tentative medium. These jets were obtained numerically from the Monte-Carlo simulations of hard collisions using the KATIE-framework \[1\], where parton momenta within the colliding nucleons were describe by means of transverse momentum distributions (TMD). We evolved these jets within a medium that contains both, transverse kicks (yielding a broadening in momentum transvers to the jet-axis) as well as medium induced radiation within the MINCAS-framework \[2\] following the works of \[3,4\]. After favorable comparison of our results with experimental LHC-data on jet-quenching we make predictions for the decorrelation of dijets. In particular, we study deviations from a transverse momentum broadening that follows a Gaussian distribution. References: \[1\] A. van Hameren, Comput.Phys.Commun. 224 (2018) 371-380 \[2\] K. Kutak, W. Płaczek, R. Straka, Eur.Phys.J. C79 (2019) no.4, 317 \[3\] J.-P. Blaizot, F. Dominguez, E. Iancu, Y. Mehtar-Tani, JHEP 1301 (2013) 143 \[4\] J.-P. Blaizot, F. Dominguez, E. Iancu, Y. Mehtar-Tani, JHEP 1406 (2014) 075.

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## Lectures

1. [Effects of in-medium k_T broadening on di-jet observables](https://invisiblenetwork.ai/learn/cern/3000680/eb301c22b974), 18 min (CERN's player)