학술논문
Status of the ATLAS Level-1 Central Trigger and Muon Barrel Trigger and First Results from Cosmic-Ray Data
Document Type
Periodical
Author
Aielli, G.; Aloisio, A.; Alviggi, M. G.; Antonelli, S.; Ask, S.; Bellagamba, L.; Ben Ami, S.; Benhammou, Y.; Berge, D.; Bianco, M.; Biglietti, M. G.; Boscherini, D.; Bressler, S.; Bruni, A.; Bruni, G.; Buda, S.; Camarri, P.; Canale, V.; Caracinha, D.; Cardarelli, R.; Carlino, G.; Chiodini, G.; Ciapetti, G.; Coluccia, M. R.; Constantin, S.; Conventi, F.; DeAsmundis, R.; DellaPietra, M.; DellaVolpe, D.; Dogaru, M.; De Pedis, D.; Di Girolamo, A.; DiCiaccio, A.; Di Mattia, A.; Ellis, N.; Etzion, E.; Farthouat, P.; Fukunaga, C.; Gallno, P.; Gorini, E.; Grancagnolo, F.; Giusti, P.; Haas, S.; Haller, J.; Hasegawa, Y.; Iacobucci, G.; Ikeno, M.; Iengo, P.; Ishino, M.; Iwasaki, H.; Izzo, V.; Kadosaka, T.; Kajomovitz, E.; Kanaya, N.; Kawagoe, K.; Kawamoto, T.; Kiyamura, H.; Klofver, P.; Kobayashi, T.; Kohno, T.; Krasznahorkay, A.; Kubota, T.; Kurashige, H.; Kuwabara, T.; Lellouch, D.; Levinson, L.; Liberti, B.; Lifshitz, R.; Luci, C.; Lupu, N.; Marchese, F.; Messina, A.; Mikenberg, G.; Migliaccio, A.; Nagano, K.; Nisati, A.; Niwa, T.; Nomachi, M.; Nomoto, H.; Nozaki, M.; Ochi, A.; Ohm, C.; Okumura, Y.; Omachi, C.; Oshita, H.; Patricelli, S.; Pauly, T.; Perantoni, M.; Pessoa Lima, H.; Petrolo, E.; Pasqualucci, E.; Pastore, F.; Pectu, M.; Perrino, R.; Polini, A.; Primavera, M.; Roich, A.; Rosati, S.; Salamon, A.; Sakamoto, H.; Santonico, R.; Sasaki, O.; Schuler, G.; de Seixas, J. M.; Sekhniaidze, G.; Solfaroli, S.; Spagnolo, S.; Spila, F.; Spiwoks, R.; Sugaya, Y.; Sugimoto, T.; Takahashi, Y.; Takeda, H.; Takeshita, T.; Tanaka, S.; Tarem, S.; Tomoto, M.; Bahat Treidel, O.; Vari, R.; Veneziano, S.; Wengler, T.; Yamaguchi, Y.; Yasu, Y.; Zanello, L.
Source
IEEE Transactions on Nuclear Science IEEE Trans. Nucl. Sci. Nuclear Science, IEEE Transactions on. 55(1):139-144 Feb, 2008
Subject
Language
ISSN
0018-9499
1558-1578
1558-1578
Abstract
The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. A three-level trigger system will select potentially interesting events in order to reduce the read-out rate to about 200 Hz. The first trigger level is implemented in custom-built electronics and makes an initial fast selection based on detector data of coarse granularity. It has to reduce the rate by a factor of $10^{4}$ to less than 100 kHz. The other two consecutive trigger levels are in software and run on PC farms. We present an overview of the first-level central trigger and the muon barrel trigger system and report on the current installation status. Moreover, we show analysis results of cosmic-ray data recorded in situ at the ATLAS experimental site with final or close-to-final hardware.