K. Kordas , M. Abolins, I. Alexandrov, A. Amorim, I. Aracena, S. Armstrong, E. Badescu, J. T. M. Baines, N. Barros, H. P. Beck, C. Bee, M. Bellomo, M. Biglietti, R. Blair, J. A. C. Bogaerts, T. Bold,… (More)
Article history: Received 29 September 2011 Received in revised form 8 February 2012 Accepted 16 February 2012 Available online 21 February 2012 Editor: H. Weerts A search for squarks and gluinos in… (More)
The local trigger processor (LTP) receives timing and trigger signals from the central trigger processor (CTP), and injects them into the timing, trigger, and control (TTC) system of a subdetector… (More)
ATLAS is a multi-purpose particle physics detector at CERN's Large Hadron Collider where two pulsed beams of protons are brought to collision at very high energy. There are collisions every 25 ns,… (More)
Event data from proton-proton collisions at the LHC will be selected by the ATLAS experiment in a three-level trigger system, which, at its first two trigger levels (LVL1+LVL2), reduces the initial… (More)
In the ATLAS experiment at the LHC, the ROD Crate DAQ provides a complete software framework to implement data acquisition functionality at the boundary between the detector specific electronics and… (More)
In the framework of the ATLAS DAQ/EF prototype “-1” a stand-alone smallscale event building prototype has been developed in order to study the issues o switch-based parallel event building as needed… (More)
The central part of the ATLAS level-1 trigger system consists of the central trigger processor (CTP), the local trigger processors (LTPs), the timing, trigger and control (TTC) system, and the… (More)
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to about 100 kHz, about 2 kHz and about 200 Hz. The High Level… (More)