Skip to main content
eScholarship
Open Access Publications from the University of California

UC Irvine

UC Irvine Previously Published Works bannerUC Irvine

The second level trigger of the ATLAS experiment at CERN's LHC

  • Author(s): dos Anjos, A;
  • Abolins, M;
  • Armstrong, S;
  • Baines, JT;
  • Barisonzi, M;
  • Beck, HP;
  • Bee, CP;
  • Beretta, M;
  • Biglietti, M;
  • Blair, R;
  • Bogaerts, A;
  • Boisvert, V;
  • Bosman, M;
  • Boterenbrood, H;
  • Botterill, D;
  • Brandt, S;
  • Caron, B;
  • Casado, P;
  • Cataldi, G;
  • Cavalli, D;
  • Cervetto, M;
  • Ciobotaru, M;
  • Comune, G;
  • Corso-Radu, A;
  • Palencia Cortezon, E;
  • Cranfield, R;
  • Crone, G;
  • Dawson, J;
  • di Girolamo, B;
  • di Mattia, A;
  • Diaz Gomez, M;
  • Dobinson, R;
  • Drohan, J;
  • Ellis, N;
  • Elsing, M;
  • Epp, B;
  • Ermoline, Y;
  • Etienne, F;
  • Falciano, S;
  • Farilla, A;
  • Ferrer, ML;
  • Francis, D;
  • Gadomski, S;
  • Gameiro, S;
  • George, S;
  • Ghete, V;
  • Golonka, P;
  • González, S;
  • Gorini, B;
  • Green, B;
  • Grothe, M;
  • Gruwe, M;
  • Haas, S;
  • Haeberli, C;
  • Hasegawa, Y;
  • Hauser, R;
  • Hinkelbein, C;
  • Hughes-Jones, R;
  • Jansweijer, P;
  • Joos, M;
  • Kaczmarska, A;
  • Karr, K;
  • Khomich, A;
  • Kieft, G;
  • Knezo, E;
  • Konstantinidis, N;
  • Korcyl, K;
  • Krasny, W;
  • Kugel, A;
  • Lankford, A;
  • Lehmann, G;
  • LeVine, M;
  • Li, W;
  • Liu, W;
  • Lowe, A;
  • Luminari, L;
  • Maeno, T;
  • Losada Maia, M;
  • Mapelli, L;
  • Martin, B;
  • McLaren, R;
  • Meessen, C;
  • Meirosu, C;
  • Mello, AG;
  • Merino, G;
  • Misiejuk, A;
  • Mommsen, R;
  • Morettini, P;
  • Mornacchi, G;
  • Moyse, E;
  • Müller, M;
  • Nagasaka, Y;
  • Nairz, A;
  • Nakayoshi, K;
  • Negri, A;
  • Nikitin, N;
  • Nisati, A;
  • Padilla, C;
  • Papadopoulos, I;
  • Parodi, F
  • et al.
Abstract

The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to ∼ 100 kHz, ∼ 2 kHz and ∼ 200 Hz. The high level triggers and data acquisition system are designed to profit from commodity computing and networking components to achieve the required performance. In this paper, we discuss data flow aspects of the design of the second level trigger (LVL2) and present results of performance measurements.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View