학술논문
Muon identification with the event filter of the ATLAS experiment at CERN LHC
Document Type
article
Author
Cataldi, G; Dos Anjos, A; Wiedenmann, W; Zobering, G; Armstrong, S; Damazio, D; Maeno, T; Baines, JTM; Emeliyanov, D; Kirk, N; Wickens, FJ; Wielers, M; Bee, CP; Meessen, C; Qian, Z; Touchard, F; Biglietti, M; Carlino, G; Conventi, F; Bogaerts, JA; Conde, P; Ellis, N; Haller, J; Padilla, C; Pinto, P; Rosati, S; Santamarina, C; Wengler, T; Werner, P; Bosman, M; Casado, P; Garitaonandia, H; Osuna, C; Segura, E; Sushkov, S; Caron, B; Moore, R; Pinfold, JL; Soluk, R; Wheeler, SJ; Gorini, E; Primavera, M; Spagnolo, S; Ventura, A; Cavalli, D; Resconi, S; Comune, G; Crone, G; Konstantinidis, N; Stefanidis, E; Sutton, M; De Santo, A; George, S; Goncalo, R; Kilvington, G; Lowe, A; Diaz Gomez, M; Di Mattia, A; Falciano, S; Luminari, L; Nisati, A; Epp, B; Ghete, V; Kabana, S; Perez Reale, V; Thomas, E; Khomich, A; Kootz, A; Lankford, AJ; Masik, J; Mello, AG; De Seixas, JM; Morettini, P; Parodi, F; Schiavi, C; Negri, A; Scannicchio, DA; Vercesi, V; Nikitin, N; Sivoklokov, S; Panikashvili, N; Tarem, S; Tapprogge, S; Usai, G; Venda Pinto, B
Source
IEEE Transactions on Nuclear Science. 53(3)
Subject
Language
Abstract
The Large Hadron Collider at CERN offers unprecedented challenges to the design and construction of detectors and trigger/data acquisition systems. For ATLAS, a three level trigger system has been developed to extract interesting physics signatures with a 10 6 rate reduction. To accomplish this, components of physics analysis traditionally deferred to off-line physics analysis must be embedded within the on-line trigger system. For the Muon trigger, the specific off-line algorithms MOORE (Muon Object Oriented REconstruction) and MuId (Muon Identification) have been adopted so far for the on-line use, imposing an operation in a Bayesian-like environment where only specific hypotheses must be validated. After a short review of the ATLAS trigger, the paper shows the general strategy of the Muon Identification and Selection accessing the full event data, or being seeded from results derived at a previous stage of the trigger chain. © 2006 IEEE.