A background estimator for jet studies in p+p and A+A collisions(10'+5')

Jul 23, 2019, 10:00 AM
32-123 (MIT)



Plenary Talk Session


Alba Soto Ontoso (Brookhaven National Lab)


Jet reconstruction analyses at the high-luminosity phase of the LHC will face a similar challenge as current heavy-ion studies: how to mitigate the impact of the overwhelming and fluctuating energy coming from unrelated soft interactions (pileup/underlying event) on physical observables. In order to address this pressing issue, we propose to improve the momentum reconstruction resolution by exploiting intrinsic correlations among the soft and hard sectors of QCD jets. Our data-driven approach [1] results into a 5-40% improvement on the resolution of the reconstructed jet $p_T$ compared to previous methods in a high-luminosity proton-proton scenario. Its applicability in a heavy-ion context will be also discussed.

[1] Yacine Mehtar-Tani, Alba Soto-Ontoso, Marta Verweij, arXiv:1904.12815

Primary author

Alba Soto Ontoso (Brookhaven National Lab)


Dr Yacine Mehtar-Tani (Brookhaven National Laboratory) Marta Verweij (Vanderbilt University (US))

Presentation materials