Event reconstruction algorithms for the ATLAS trigger

Fonseca-Martin, T.; Abolins, M.; Adragna, P.; Aleksandrov, E.; Aleksandrov, I. N.; Amorim, A.; Anderson, K. J.; Anduaga, X. S.; Aracena, I.; Asquith, L.; Avolio, G.; Backlund, Sandra; Badescu, E.; Baines, J. T.; Barria, P.; Bartoldus, R.; Batreanu, S.; Beck, H. P.; Bee, C. P.; Bell, P. J.; Bell, W. H.; Bellomo, M.; Benslama, K.; Berge, D.; Berger, N.; Berry, T.; Biglietti, M.; Blair, Robert; Bogaerts, A.; Bołd, T.; Bosman, M.; Boyd, J.; Brelier, B.; Burckhart-Chromek, D.; Buttar, C. M.; Campanelli, M.; Caprini, M.; Carlino, G.; Casadei, D.; Casado, P.; Cataldi, G.; Cimino, D.; Ciobotaru, M. D.; Clements, D.; Coccaro, A.; Muíño, P. Conde; Conventi, F.; Corso-Radu, A.; Costa, M. J.; Torres, R. Coura; Cranfield, R.; Cranmer, K.; Crone, G.; Dam, M.; Damazio, D. Oliveira; Dawson, I.; Dawson, J. W.; Simões, Jorge; Cecco, S. De; Santo, A. De; Pietra, M. Della; Delsart, P. A.; Demers, S.; Demirköz, B.; Mattia, A. Di; Dionisi, C.; Djilkibaev, R.; Dobinson, R.; Dobson, M.; Dotti, A.; Dova, M. T.; Drake, G.; Dufour, M. A.; Eckweiler, S.; Ehrenfeld, W.; Eifert, T.; Ellis, N.; Emeliyanov, D.; Lima, D. E. Ferreira de; Ermoline, Y.; Eschrich, I.; Facius, K.; Falciano, S.; Farthouat, P.; Feng, E. J.; Ferland, J.; Ferrari, R.; Ferrer, M. L.; Fischer, G.; Francis, D.; Gadomski, S.; Elejabarrieta, H Garitaonandia; Gaudio, G.; Gaumer, O.; George, S.; Giagu, S.; Gonçalo, R.; Gorini, B.; Gorini, E.; Gowdy, S.; Grabowska-Bołd, I.; Grancagnolo, S.; Green, B.; Haas, S.; Haberichter, W.; Hadavand, H. K.; Haeberli, C.; Haller, J.; Hamilton, A.; Hansen, J.R.; Hauschild, M.; Hauser, R.; Head, S. J.; Hillier, S. J.; Hoecker, A.; Hrynʼova, T.; Hughes-Jones, R. E.; Huston, J.; Idárraga, J.; Igonkina, O.; Inada, M.; Jain, V.; Johns, K. A.; Joos, M.; Kama, S.; Kanaya, N.; Kazarov, A.; Kehoe, R.; Khoriauli, G.; Kieft, G.; Kilvington, G.; Kirk, J.; Kiyamura, H.; Kolos, S.; Kono, T.; Konstantinidis, N.; Korcyl, K.; Kordas, K.; Kotov, V. M.; Krasznahorkay, A.; Kubota, Tohru; Kugel, A.; Kühn, D.; Kurasige, H.; Kuwabara, T.; Kwee, R.; Lankford, A.J.; LeCompte, T.; Leahu, L.; Leahu, M.; Ledroit, F.; Miotto, G. Lehmann; Lei, X.; Lellouch, D.; Leyton, M.; Li, S.; Lim, H.; Löhse, T.; Losada, M.; Luci, C.; Luminari, L.; Mapelli, L.; Martin, B.; Marzano, Frank S.; Mašík, J.; McMahon, Thomas J.; McPherson, R. A.; Medinnis, M.; Meessen, C.; Meiroşu, Cătălin; Messina, A.; Mincer, A. I.; Mineev, M.; Misiejuk, A.; Mönig, K.; Monticelli, F.; Moraes, A.; Moreno, D.; Morettini, P.; Garcia, R. Murillo; Nagano, K.; Nagasaka, Y.; Negri, A.; Némethy, P.; Neusiedl, A.; Nisati, A.; Nožička, M.; Omachi, C.; Osculati, B.; Osuna, C.; Aranda, C. Padilla; Panikashvili, N.; Parodi, F.; Pasqualucci, E.; Pauly, T.; Perera, V.J.O.; Pérez, E.; Reale, V. Perez; Petersen, J.; Piegaia, R.; Pilcher, J. E.; Pinzón, G.; Pope, B. G.; Potter, C. T.; Primavera, M.; Radescu, V.; Rajagopalan, S.; Renkel, P.; Rescigno, M.; Rieke, S.; Risler, C.; Riu, I.; Robertson, Scott; Roda, C.; Rodriguez, D. Rodriguez; Rogriquez, Y.; Ryabov, Y. F.; Ryan, P.; Salvatore, D.; Santamarina, C.; Ríos, C. Santamarina; Scannicchio, D. A.; Schiavi, C.; Schlereth, J. L.; Scholtes, Ingo; Schooltz, D.; Scott, W. G.; Segura, E.; Shimbo, Naoyuki; Sidoti, A.; Siragusa, G.; Sivoklokov, S. Yu.; Sloper, J.; Smižanská, M.; Soloviev, I.; Soluk, R.; Spagnolo, S.; Spiwoks, R.; Stancu, S.; Steinberg, P.; Stelzer, J.; Stradling, A. R.; Strom, D.; Strong, J. A.; Su, D.; Sushkov, S.; Sutton, M. R.; Szymocha, T.; Tapprogge, S.; Tarem, S.; Tarem, Z.; Teixeira-Dias, P.; Tokoshuku, K.; Torrence, E.; Touchard, F.; Tremblet, L.; Tripiana, M.F.; Usai, G.; Vachon, B.; Vandelli, W.; Ventura, A.; Vercesi, V.; Vermeulen, J. C.; Schmitt, Jonas; Wang, Meng; Watson, A. T.; Wengler, T.; Werner, P.; Wheeler-Ellis, S. J.; Wickens, F. J.; Wiedenmann, W.; Wielers, M.; Wilkens, H. G.; Winklmeier, F.; Oehrling, E.-E.; Wu, S. L.; Wu, X.; Xella, S.; Yamazaki, Y.; Yu, M.; Zema, F.; Zhang, J.; Zhao, Lili; Zobernig, H.; Anjos, A. Dos; Nedden, M. zur; zcan, Ender; Nel, G.

doi:10.1088/1742-6596/119/2/022022

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“…More detailed results on specific algorithms are reported in [8]. Similar measurements have been performed configuring the HLT nodes as EFPs (and bypassing the L2).…”

Section: Hlt Testsmentioning

confidence: 99%

Integration of the trigger and data acquisition systems in ATLAS

Riu¹,

Abolins

Adragna

et al. 2008

J. Phys.: Conf. Ser.

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Abstract. During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. There have been a series of technical runs using the final components of the system already installed in the experimental area. Various tests have been run including ones where level 1 preselected simulated proton-proton events have been processed in a loop mode through the trigger and dataflow chains. The system included the readout buffers containing the events, event building, level 2 and event filter trigger algorithms. The scalability of the system 3 with respect to the number of event building nodes used has been studied and quantities critical for the final system, such as trigger rates and event processing times, have been measured using different trigger algorithms as well as different TDAQ components. This paper presents the TDAQ architecture, the current status of the installation and commissioning and highlights the main test results that validate the system.

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“…More detailed results on specific algorithms are reported in [8]. Similar measurements have been performed configuring the HLT nodes as EFPs (and bypassing the L2).…”

Section: Hlt Testsmentioning

confidence: 99%