During LHC Run 2 (2015–2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1× 1034 cm- 2s- 1, which exceeds the design value by a factor of two. The system was installed in 2016 and operated in 2017 and 2018. It uses Field Programmable Gate Array processors to select interesting events by placing kinematic and angular requirements on electromagnetic clusters, jets, τ-leptons, muons and the missing transverse energy. It allowed to significantly improve the background event rejection and signal event acceptance, in particular for Higgs and B-physics processes.
Performance of the ATLAS Level-1 topological trigger in Run 2 / G. Aad, B.A.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 82:1(2022 Jan 05), pp. 7.1-7.26. [10.1140/epjc/s10052-021-09807-0]
Performance of the ATLAS Level-1 topological trigger in Run 2
A. AndreazzaMembro del Collaboration Group
;L. CarminatiMembro del Collaboration Group
;S. D'AuriaMembro del Collaboration Group
;L. Dell'AstaMembro del Collaboration Group
;M. FantiMembro del Collaboration Group
;M. LazzaroniMembro del Collaboration Group
;C. Meroni;D.P. MungoMembro del Collaboration Group
;A. MurroneMembro del Collaboration Group
;L. PeriniMembro del Collaboration Group
;F. RagusaMembro del Collaboration Group
;A. StabileMembro del Collaboration Group
;
2022
Abstract
During LHC Run 2 (2015–2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1× 1034 cm- 2s- 1, which exceeds the design value by a factor of two. The system was installed in 2016 and operated in 2017 and 2018. It uses Field Programmable Gate Array processors to select interesting events by placing kinematic and angular requirements on electromagnetic clusters, jets, τ-leptons, muons and the missing transverse energy. It allowed to significantly improve the background event rejection and signal event acceptance, in particular for Higgs and B-physics processes.| File | Dimensione | Formato | |
|---|---|---|---|
|
2105.01416.pdf
accesso aperto
Tipologia:
Publisher's version/PDF
Licenza:
Creative commons
Dimensione
8.17 MB
Formato
Adobe PDF
|
8.17 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.




