Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 76, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-016-4130-9
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Funding
- Fundacao para a Ciencia e a Tecnologia (Portugal) [CERN/FIS-NUC/0049/2015, SFRH/BPD/102844/2014]
- Fundacao para a Ciencia e a Tecnologia (Portugal) under contract 'Investigador FCT - Development Grant'
- Fundação para a Ciência e a Tecnologia [CERN/FIS-NUC/0049/2015, SFRH/BPD/102844/2014] Funding Source: FCT
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The di-jet asymmetry-the measure of the momentum imbalance in a di-jet system-is a key jet quenching observable. Using the event generator Jewel we show that the di-jet asymmetry is dominated by fluctuations both in proton-proton and in heavy-ion collisions. We discuss how in proton-proton collisions the asymmetry is generated through recoil and out-of-cone radiation. In heavy-ion collisions two additional sources can contribute to the asymmetry, namely energy loss fluctuations and differences in path length. The latter is shown to be a sub-leading effect. We discuss the implications of our results for the interpretation of this observable.
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