[PDF] Top 20 Particle Flow reconstruction in the CMS Level-1 Trigger For The HL-LHC
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Particle Flow reconstruction in the CMS Level-1 Trigger For The HL-LHC
... the Level-1 environment. In particular, the Level-1 PF algorithm must process events at the 40 MHz collision rate, and output the reconstructed particles after a fixed latency below 1 ... See full document
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Kalman Filter track reconstruction on FPGAs for acceleration of the High Level Trigger of the CMS experiment at the HL-LHC
... the CMS Level-1 Trigger [9]. Track reconstruction has also been ported to other parallel architectures, such as GPUs and Intel Xeon Phi ... See full document
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The CMS Particle Flow Algorithm
... the CMS experiment, the PF algorithm was first studied using MC events in 2009, then it was commissioned with data and applied in physics analyses in 2010, followed by the implementation in the High Level ... See full document
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FPGA-Based Tracklet Approach to Level-1 Track Finding at CMS for the HL-LHC
... Luminosity LHC, the CMS detector will need charged particle tracking at the hardware trigger level to maintain a manageable trigger rate and achieve its physics ... See full document
11
L1 track trigger for the CMS HL-LHC upgrade using AM chips and FPGAs
... Each PRM board contains one or two Xilinx FPGAs, implementing data flow management and track fitting, and one or multiple AM devices. Each PRM board receives full resolution data and temporarily stores them in a ... See full document
10
Forward Physics with the CMS Experiment at LHC
... energy flow measured in calorimeters is corrected to the particle level by using GEANT4 [3] based MC detector ...at particle level and detector level where the detec- tor ... See full document
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Trigger Rate Monitoring Tools at CMS
... if trigger rates are behaving as expected, a set of reference fits are first made using a collection of past runs with certified good detector ...per LHC bunch crossing, µ (also known as average in-time ... See full document
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CMS trigger performance
... L1 trigger has been through a major upgrade compared to Run 1, whereby all electronic boards of the system have been replaced, allowing more sophisticated algorithms to be run ...global trigger, is ... See full document
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Expected Performance of Tracking in CMS at the HL-LHC
... Tracker has six barrel layers and five end-cap disks, where a part of the modules in the three innermost barrel layers are arranged in a tilted scheme. The Outer Tracker modules have been designed to provide useful ... See full document
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The CMS trigger system
... the LHC, pileup effects became much more important and therefore improvements in the design of most of the paths included in the menu were ...a trigger should be proportional to the instantaneous ... See full document
122
Online Reconstruction and Calibration with Feedback Loop in the ALICE High Level Trigger
... High Level Trigger (HLT) is an online computing farm, which reconstructs events recorded by the ALICE detector in ...the reconstruction of the particle trajec- ...precise reconstruction ... See full document
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CMS event reconstruction status in Run 2
... event reconstruction for the CMS experiment is based on the concept of Particle Flow (PF) ...the particle-like final state objects which will be used in the ...are particle ... See full document
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FPGA-Based Approach to Level-1 Track Finding at CMS for the HL-LHC
... The boards used for the demonstrator system are μTCA boards with a Xilinx Virtex-7 (XC7VX690T) FPGA [5] and a Xilinx Zynq processor for outside communication. These so-called CTP7 boards [6] were developed for the ... See full document
10
A Proposal for the Upgrade of the Muon Drift Tubes Trigger for the CMS Experiment at the HL-LHC
... the CMS experiment relies on a redundant detection system exploiting three different technologies: Drift Tube chambers (DT) in the central region | η | < ...the Level 1 Trigger (L1) decision ... See full document
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Design and performance of the LHCb trigger and full real time reconstruction in Run 2 of the LHC
... dedicated trigger lines without any loss in efficiency compared to the offline ...-hadron trigger lines because around 10% of all 13 TeV proton-proton collisions produce a c c ¯ pair, and it is not possible ... See full document
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Associative Memory Pattern Matching for the L1 Track Trigger of CMS at the HL-LHC
... in CMS are helices since they are bent by the magnetic field generated by a ...charged particle passes through the Silicon Tracker, it releases a small amount of energy in the silicon sensors, and the ... See full document
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Impact of LHC Run-1 on particle astrophysics
... and sibyll [9]. The dominant source of uncertainty in the interpretation of the EAS data stems from our limitations to model particle production in strongly-interacting systems at c.m. energies up to √ s GZK ≈ 400 ... See full document
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Performance of the LHC, ATLAS and CMS in 2011
... As will be discussed in the next sections, the occurrence of several independent, inelastic, proton-proton collisions during one bunch crossing constitutes a noise, usually called pile-up noise, which degrades to some ... See full document
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Software-based data acquisition system for Level-1 end-cap muon trigger in Atlas Run-3
... The ROD is not performant enough to be used in Run-3. This is because the data transfer rate to the ROD system will be increased due to the new muon chambers sending more precise hit information, i.e. larger fragments. ... See full document
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Soft Particle Production, Flow and Correlations in Heavy Ion Collisions at the LHC
... state flow coe ffi cients ...anisotropic flow, to distinguish between di ff erent mod- els of initial conditions and to constrain the value of the viscosity-over-entropy ratio η/s (one of the main trans- ... See full document
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