Graphical display of detector and event information. Project website.
«Readout boards:ReadoutBoard» used for the «data acquisition system:DAQ», «Experiment Control System:ECS» and «Timing and Fast Control:TFC» (TFC). Refer to the LHCb Trigger and Online TDR for details. Each board has 48 bidirectional optical links for interfacing with the frontend electronics and one bidirectional optical link for interfacing the «TFC».
A path for a file on the grid, including the physical location to allow for access.
Software package for adding final state radiation (FSR) to simulated particles. Eur. Phys. J. C45 (2006) 97
The process of determining what species a final state particle is. Charged particle identification typically separates electrons, kaons, muons, pions and protons. Neutral particle identification typically separates neutral pions and photons.
Person responsible for leading a substructure of LHCb that is formally called a «Project:ConstitutionalProject». This should not be confused with working group conveners. See the list of current Project leaders.
Interaction point of the LHC at which the LHCb pit and the cavern are located.
Short for "turning it off and on again".
Advisory body to the LHCb management that defines the strategy and priority of the experiments physics programme.
Group of analysts working on similar/related analyses in terms of research subject. PPWGs are coordinated by convenors (who are part of the «PPG»). Many working groups are further divided into subgroups. See the section below Physics Planning Group.
Groups in charge of maintaining tools and inputs into multiple analyses, such as luminosity measurements, «PID» methods and calibration, «Flavour Tagging:Flavour-Tagging». PAWGs are coordinated by convenors (who are part of the «PPG»). See the section below Physics Planning Group.
A request for processing centrally a physics request. Production Requests are managed by the LHCb distributed computing team via LHCbDIRAC. LHCb users can create production requests via the LHCbDIRAC Web Portal. Production Requests are subject to approval by the «PPG».
Centrally managed processing, via LHCbDIRAC, of «Production Requests:PR». Examples of productions include: MC simulation, Reconstruction, Stripping, Working Group productions. A production is a combination of application steps.
A substructure of LHCb as defined by the LHCb constitution. Typically these are detectors («VELO», «ST», «CALO», …) but also «HLT», Computing, Online, and «RTA» are projects. Not to be confused with Physics (Analysis/Performance) Working Groups (they differ in creation procedure, budget, authority, formal commitment from institutes…).
Subdivision level at which LHCb software is hosted (version control, dealing with merge requests, builds, releases).
A milestone during the construction of a subdetector. The PRR occurs after the «EDR». The PRR is a meeting with accompanying documentation that describes the detailed design of a component system of the detector (e.g. sensors, an ASIC, high voltage system). Reviewers with relevant expertise from other subdetectors in LHCb and from other experiments are usually appointed to conduct the review and make recommendations. The PRR makes recommendations for revisions or approves that the final production of this element of the subdetector can start.
The angle between a particle's trajectory and the beam axis, see Wikipedia.
The PS consists of scintillating pads and is placed after the «SPD» and before the «ECAL». A lead absorber is placed between the SPD and PS. The joint purpose of the SPD and PS is to reduce the background for the «L0» electron trigger. The PS helps distinguish between electrons and charged hadrons.
The point of the original, typically proton-proton, collision.
The most commonly used Monte Carlo generator in LHCb. Typically simulates the proton-proton collision and hadronisation process. Website.