Studies for a common selection software environment in ATLAS: from the level-2 trigger to the offline reconstruction

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ID: 272009
2004
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Abstract
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in the ATLAS offline reconstruction framework. While this approach provides a unified software framework for event selection, it poses strict requirements on offline components critical for the Level-2 trigger. A Level-2 decision in ATLAS must typically be accomplished within 10 ms and with multiple event processing in concurrent threads. To address these constraints, prototypes have been developed that incorporate elements of the ATLAS data flow, high level trigger, and offline framework software. To realize a homogeneous software environment for offline components in the HLT, the Level-2 Steering Controller was developed. With electron/gamma- and muon-selection slices it has been shown that the required performance can be reached, if the offline components used are carefully designed and optimized for the application in the HLT.
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Authors S. Armstrong,John Baines,C.P. Bee,M. Biglietti,A. Bogaerts,V. Boisvert,Martine Bosman,S. Brandt,B. Caron,P. Casado,Gabriella Cataldi,D. Cavalli,M. Cervetto,G. Comune,A. Corso-Radu,A. Di Mattia,M.D. Gomez,A. Dos Anjos,J. Drohan,Nicolas Ellis,Markus Elsing,B. Epp,F. Etienne,S. Falciano,A. Farilla,S. George,V. Ghete,S. Gonzalez,M. Grothe,Anna Kaczmarska,K. Karr,A. Khomich,Nikolaos Konstantinidis,W. Krasny,W. Li,Andrew Lowe,L. Luminari,C. Meessen,A.G. Mello,Gonzalo Merino,P. Morettini,Edward Moyse,Armin Nairz,A. Negri,N. Nikitin,Aleandro Nisati,Cristobal Padilla,F. Parodi,V. Perez-Reale,J.L. Pinfold,P. Pinto,G. Polesello,Z. Qian,S. Resconi,S. Rosati,D.A. Scannicchio,C. Schiavi,T. Schoerner-Sadenius,E. Segura,J.M. De Seixas,Tara Shears,S. Sivoklokov,M. Smizanska,R. Soluk,C. Stanescu,S. Tapprogge,F. Touchard,V. Vercesi,A. Watson,Thorsten Wengler,P. Werner,S. Wheeler,F.J. Wickens,Werner Wiedenmann,Monika Wielers,H. Zobernig;S. Armstrong;John Baines;C.P. Bee;M. Biglietti;A. Bogaerts;V. Boisvert;Martine Bosman;S. Brandt;B. Caron;P. Casado;Gabriella Cataldi;D. Cavalli;M. Cervetto;G. Comune;A. Corso-Radu;A. Di Mattia;M.D. Gomez;A. Dos Anjos;J. Drohan;Nicolas Ellis;Markus Elsing;B. Epp;F. Etienne;S. Falciano;A. Farilla;S. George;V. Ghete;S. Gonzalez;M. Grothe;Anna Kaczmarska;K. Karr;A. Khomich;Nikolaos Konstantinidis;W. Krasny;W. Li;Andrew Lowe;L. Luminari;C. Meessen;A.G. Mello;Gonzalo Merino;P. Morettini;Edward Moyse;Armin Nairz;A. Negri;N. Nikitin;Aleandro Nisati;Cristobal Padilla;F. Parodi;V. Perez-Reale;J.L. Pinfold;P. Pinto;G. Polesello;Z. Qian;S. Resconi;S. Rosati;D.A. Scannicchio;C. Schiavi;T. Schoerner-Sadenius;E. Segura;J.M. De Seixas;Tara Shears;S. Sivoklokov;M. Smizanska;R. Soluk;C. Stanescu;S. Tapprogge;F. Touchard;V. Vercesi;A. Watson;Thorsten Wengler;P. Werner;S. Wheeler;F.J. Wickens;Werner Wiedenmann;Monika Wielers;H. Zobernig;
Journal ieee transactions on nuclear science
Year 2004
DOI
10.1109/tns.2004.829548
URL
https://sciprofiles.com/publication/view/6dea29986125acb7c05ed3428552bb07
Keywords
physics electrons detectors filters large hadron collider mesons software prototyping design optimization application software software reusability

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