Performance of pile-up mitigation techniques for jets in pp collisions at √s = 8 TeV using the ATLAS detector

0471729 - FZÚ 2017 RIV US eng J - Journal Article
Aad, G. - Abbott, B. - Abdallah, J. - Chudoba, Jiří - Havránek, Miroslav - Hejbal, Jiří - Jakoubek, Tomáš - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Vrba, Václav … Total 2859 authors
Performance of pile-up mitigation techniques for jets in pp collisions at √s = 8 TeV using the ATLAS detector.
European Physical Journal C. Roč. 76, č. 11 (2016), s. 1-54, č. článku 581. ISSN 1434-6044. E-ISSN 1434-6052
Institutional support: RVO:68378271
Keywords : pile-up * performance * ATLAS * CERN LHC Coll * data analysis method * track data analysis * experimental results * 8000 GeV-cms
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 5.297, year: 2016

The large rate of multiple simultaneous proton–proton interactions, or pile-up, generated by the Large Hadron Collider in Run 1 required the development of many new techniques to mitigate the adverse effects of these conditions. The methods employed to correct for the impact of pile-up on jet energy, shapes and multiplicity with the ATLAS detector are presented here. They include energy correction techniques based on estimates of the average pile-up energy density and jet-to-vertex association techniques. Extensions of these methods to reduce the impact of pile-up on jet shapes use both subtraction and grooming procedures. Prospects for pile-up suppression at the HL-LHC are also shown.


Permanent Link: http://hdl.handle.net/11104/0269069