Performance of the ATLAS Level-1 topological trigger in Run 2 Article Swipe
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Georges Aad
,
B. Abbott
,
D. C. Abbott
,
A. Abed Abud
,
K. Abeling
,
D. K. Abhayasinghe
,
S. H. Abidi
,
R. Coelho Lopes De
,
A. V. Anisenkov
,
H. Abramowicz
,
H. Abreu
,
Y. Abulaiti
,
A. C. Abusleme Hoffman
,
B. S. Acharya
,
B. Achkar
,
L. Adámek
,
C. Adam Bourdarios
,
L. Adamczyk
,
L. Adámek
,
J. Adelman
,
Aytul Adiguzel
,
A. A. Affolder
,
T. Adye
,
A. A. Affolder
,
A. A. Affolder
,
C. Agapopoulou
,
M. N. Agaras
,
A. Aggarwal
,
C. Agheorghiesei
,
J. A. Aguilar–Saavedra
,
M. Ahmad
,
F. Ahmadov
,
F. Ahmadov
,
X. Ai
,
G. Aielli
,
S. Akatsuka
,
M. Akbiyik
,
T. P. A. Åkesson
,
E. Akilli
,
A. V. Akimov
,
K. Al Khoury
,
G. L. Alberghi
,
J. Albert
,
M. J. Alconada Verzini
,
S. Alderweireldt
,
M. Aleksa
,
Igor Aleksandrov
,
C. Alexa
,
Theodoros Alexopoulos
,
A. Alfonsi
,
F. Alfonsi
,
M. Alhroob
,
Babar Ali
,
S. Ali
,
S. Ali
,
G. Alimonti
,
C. Allaire
,
B. M. M. Allbrooke
,
P. P. Allport
,
A. Aloisio
,
Francisco Alonso
,
C. Alpigiani
,
M. Alvarez Estevez
,
M. Alvarez Estevez
,
M. G. Alviggi
,
Y. Amaral Coutinho
,
A. Ambler
,
L. Ambroz
,
S. P. Amor Dos Santos
,
D. Amidei
,
Susana Patricia Amor dos Santos
,
S. Amoroso
,
F. F. An
,
C. Anastopoulos
,
N. Andari
,
T. Andeen
,
J. K. Anders
,
S. Y. Andrean
,
Attilio Andreazza
,
A. Angerami
,
S. Angelidakis
,
A. Angerami
,
A. V. Anisenkov
,
A. Annovi
,
C. Antel
,
C. Antel
,
E. Antipov
,
M. Antonelli
,
D. J. A. Antrim
,
Fabio Anulli
,
M. Aoki
,
J. A. Aparisi Pozo
,
M. A. Aparo
,
L. Aperio Bella
,
V. Araujo Ferraz
,
V. Araujo Ferraz
,
S. Argyropoulos
,
A. T. H. Arce
,
J-F. Arguin
,
S. Argyropoulos
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.17863/cam.79985
· OA: W4287180002
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.17863/cam.79985
· OA: W4287180002
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.
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