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arXiv · 1812.10790

Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC

R. Aaij·S. Akar·J. Albrecht·M. Alexander·A. Alfonso Albero·S. Amerio·L. Anderlini·P. d'Argent·A. Baranov·W. Barter·S. Benson·D. Bobulska·T. Boettcher·S. Borghi·E. E. Bowen·L. Brarda·C. Burr·J. -P. Cachemiche·M. Calvo Gomez·M. Cattaneo·H. Chanal·M. Chapman·M. Chebbi·M. Chefdeville·P. Ciambrone·J. Cogan·S. -G. Chitic·M. Clemencic·J. Closier·B. Couturier·M. Daoudi·K. De Bruyn·M. De Cian·O. Deschamps·F. Dettori·F. Dordei·L. Douglas·K. Dreimanis·L. Dufour·G. Dujany·P. Durante·P. -Y. Duval·A. Dziurda·S. Esen·C. Fitzpatrick·M. Fontanna·M. Frank·M. Van Veghel·C. Gaspar·D. Gerstel·Ph. Ghez·K. Gizdov·V. V. Gligorov·E. Govorkova·L. A. Granado Cardoso·L. Grillo·I. Guz·F. Hachon·J. He·D. Hill·W. Hu·W. Hulsbergen·P. Ilten·Y. Li·C. P. Linn·O. Lupton·D. Johnson·C. R. Jones·B. Jost·M. Kenzie·R. Kopecna·P. Koppenburg·M. Kreps·R. Le Gac·R. Lefèvre·O. Leroy·F. Machefert·G. Mancinelli·S. Maddrell-Mander·J. F. Marchand·U. Marconi·C. Marin Benito·M. Martinelli·D. Martinez Santos·R. Matev·E. Michielin·S. Monteil·A. Morris·M. -N. Minard·H. Mohamed·M. J. Morello·P. Naik·S. Neubert·N. Neufeld·E. Niel·A. Pearce·P. Perret·F. Polci·J. Prisciandaro·C. Prouve
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Abstract

The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the high-level physics objects produced during real-time processing, this redesign enabled the widespread deployment of real-time analysis during Run 2. We describe the design of the Run 2 trigger and real-time reconstruction, and present data-driven performance measurements for a representative sample of LHCb's physics programme.

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R. Aaij, S. Akar, J. Albrecht, M. Alexander, A. Alfonso Albero, S. Amerio, L. Anderlini, P. d'Argent, A. Baranov, W. Barter, S. Benson, D. Bobulska, T. Boettcher, S. Borghi, E. E. Bowen, L. Brarda, C. Burr, J. -P. Cachemiche, M. Calvo Gomez, M. Cattaneo, H. Chanal, M. Chapman, M. Chebbi, M. Chefdeville, P. Ciambrone, J. Cogan, S. -G. Chitic, M. Clemencic, J. Closier, B. Couturier, M. Daoudi, K. De Bruyn, M. De Cian, O. Deschamps, F. Dettori, F. Dordei, L. Douglas, K. Dreimanis, L. Dufour, G. Dujany, P. Durante, P. -Y. Duval, A. Dziurda, S. Esen, C. Fitzpatrick, M. Fontanna, M. Frank, M. Van Veghel, C. Gaspar, D. Gerstel, Ph. Ghez, K. Gizdov, V. V. Gligorov, E. Govorkova, L. A. Granado Cardoso, L. Grillo, I. Guz, F. Hachon, J. He, D. Hill, W. Hu, W. Hulsbergen, P. Ilten, Y. Li, C. P. Linn, O. Lupton, D. Johnson, C. R. Jones, B. Jost, M. Kenzie, R. Kopecna, P. Koppenburg, M. Kreps, R. Le Gac, R. Lefèvre, O. Leroy, F. Machefert, G. Mancinelli, S. Maddrell-Mander, J. F. Marchand, U. Marconi, C. Marin Benito, M. Martinelli, D. Martinez Santos, R. Matev, E. Michielin, S. Monteil, A. Morris, M. -N. Minard, H. Mohamed, M. J. Morello, P. Naik, S. Neubert, N. Neufeld, E. Niel, A. Pearce, P. Perret, F. Polci, J. Prisciandaro, C. Prouve. 2018-12-27. Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC. https://doi.org/10.1088/1748-0221%2F14%2F04%2Fp04013

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