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Beteta, C Abellan; Chivite, E Aguiló; Ajaltouni, Z; Amhis, Y; Barsuk, S; Beigbeder-Beau, C; Belyaev, I; Bohner, G; Bonnefoy, R; Breton, D; Gómez, M Calvo; Camilleri, L; Callot, O; Camboni, A; Chanal, H; Charlet, D; Comerma-Montells, A; Cornat, R; Crouau, M; Dalmagne, B; Deschamps, O; Bonal, F Domingo; Drancourt, C; Duarte, O; Dzhelyadin, R; Egorychev, V; Filippov, S; Quenzer, F Fulda; Ticó, J Garra; Garrido, L; Gascon, D; Valenzuela, A Gaspar de; Gioi, L L; Golubkov, D; Golutvin, A; Bano, C González; Gàndara, M Grabalosa; Díaz, R Graciani; Graugés, E; Gushchin, E; Guz, Yu; Jean-Marie, B; Konoplyannikov, A; Kristic, R; Kvaratskheliya, T; Ky, B; Lecoq, J; Lefèvre, R; Lefran\cois, J; Asamar, E López; Machefert, F; Machikhiliyan, I; Martens, A; Minard, M N; Monteil, S; Niess, V; Perret, P; Olloqui, E Picatoste; Navarro, A Puig; Reinmuth, G; Riera-Baburés, J; Robbe, P; Roselló, M; Ruiz, H; Savrina, D; Schopper, A; Schune, M H; Shatalov, P; Sobczak, K; T'Jampens, S; Tocut, V; Gómez, R Vàzquez; Viaud, B; Videau, I; Vilasís-Cardona, X; Zhokhov, A
Journal of instrumentation, 08/2012, Letnik: 7, Številka: 8Journal Article
LHCb is the experiment at the Large Hadron Collider at CERN designed for performing studies of CP-symmetry violation and rare decays of B-hadrons. Its calorimeter system allows to trigger on photons and electrons by associating the information from a scintillating pad signing charged particle (SPD), a pre-shower tagging electromagnetic particles (PS), an electromagnetic calorimeter (ECAL) and a hadronic calorimeter (HCAL). We present the principles and procedures for the fine time-alignment throughout the commissioning and the first collision phases. We give a particular emphasis to the choices made in the electronic design of the calorimeters to deal with the signal shape and spill over. Also we summarise the achieved levels of synchronisation.
