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http://hdl.handle.net/2445/196021
Title: | The LHCb trigger and its performance in 2011 |
Author: | LHCb Collaboration Ruiz, Hugo (Ruiz Pérez) |
Keywords: | Física de partícules Experiments Gran Col·lisionador d'Hadrons Particle physics Experiments Large Hadron Collider (France and Switzerland) |
Issue Date: | Apr-2013 |
Publisher: | Institute of Physics (IOP) |
Abstract: | This paper presents the design of the LHCb trigger and its performance on data taken at the LHC in 2011. A principal goal of LHCb is to perform flavour physics measurements, and the trigger is designed to distinguish charm and beauty decays from the light quark background. Using a combination of lepton identification and measurements of the particles' transverse momenta the trigger selects particles originating from charm and beauty hadrons, which typically fly a finite distance before decaying. The trigger reduces the roughly 11 MHz of bunch-bunch crossings that contain at least one inelastic pp interaction to 3 kHz. This reduction takes place in two stages; the first stage is implemented in hardware and the second stage is a software application that runs on a large computer farm. A data-driven method is used to evaluate the performance of the trigger on several charm and beauty decay modes. |
Note: | Reproducció del document publicat a: https://doi.org/10.1088/1748-0221/8/04/P04022 |
It is part of: | Journal of Instrumentation, 2013, vol. 8, p. 04022 |
URI: | http://hdl.handle.net/2445/196021 |
Related resource: | https://doi.org/10.1088/1748-0221/8/04/P04022 |
ISSN: | 1748-0221 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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