M. C. Stockton
A5029597206- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Distributed and Parallel Computing Systems
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Advanced Data Storage Technologies
- advanced mathematical theories
- Muon and positron interactions and applications
- Parallel Computing and Optimization Techniques
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Big Data Technologies and Applications
- Superconducting Materials and Applications
- Structural Analysis of Composite Materials
- Nuclear reactor physics and engineering
- Scientific Computing and Data Management
European Organization for Nuclear Research
2012-2025
AGH University of Krakow
2015-2024
Jagiellonian University
2017-2024
Atlas Scientific (United States)
2024
SR Research (Canada)
2024
A. Alikhanyan National Laboratory
2024
Institute of High Energy Physics
2024
Federación Española de Enfermedades Raras
2024
The University of Adelaide
2014-2023
University of Oregon
2017-2023
The ATLAS Level-1 Calorimeter Trigger uses reduced-granularity information from all the calorimeters to search for high transverse-energy electrons, photons, τ leptons and jets, as well missing total transverse energy. calorimeter trigger electronics has a fixed latency of about 1 μs, using programmable custom-built digital electronics. This paper describes hardware, installed in cavern.
The 2011 Les Houches workshop was the first to confront LHC data. In two years since previous there have been significant advances in both soft and hard QCD, particularly areas of multi-leg NLO calculations, inclusion those calculations into parton shower Monte Carlos, tuning non-perturbative parameters Carlos. These proceedings describe theoretical that taken place, impact early data, for future development.
Despite rather long-term theoretical and experimental studies, the hypothesis of non-zero intrinsic (or valence-like) heavy quark component proton distribution functions has not yet been confirmed or rejected. The LHC with $pp$-collisions at $\sqrt{s}=$ 7--14 TeV will obviously supply extra unique information concerning above-mentioned proton. To use potential, first all, one should select parton-level (sub)processes (and final-state signatures) that are most sensitive to contributions. this...
We study the impact of differential isolated-photon+jet cross sections measured in proton-proton collisions at a center-of-mass energy sqrt{s} = 7 TeV on parton distribution functions (PDF) proton. Next-to-leading order perturbative QCD (pQCD) calculations complemented with NNPDF2.1 densities, and Bayesian PDF reweighting method are employed. find that although current data provide only mild constraints to future gamma-jet measurements reduced experimental uncertainties can improve our...
The LHC with pp-collisions at √s = 7–14 TeV will obviously supply extra unique information concerning the non-zero intrinsic (or valence-like) heavy quark component of proton distribution functions proton. On basis theoretical study it is demonstrated that investigaton contributions looks very promising in processes like pp → γ + c(b) X.
The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors as well other sources makes the final Accept (L1A) decision. Due to increasing luminosity of LHC growing demands physics monitoring placed on system, current CTP has reached its design limits. Therefore in order provide some margin for future operation, will be upgraded during shutdown 2013/14.
The ATLAS Level-1 Calorimeter Trigger is one of the main elements first stage event selection for experiment at LHC. input consists a mixed analogue/digital component taking trigger sums from calorimeters. logic performed in digital, pipelined system with several stages processing, largely based on FPGAs, which perform programmable algorithms parallel fixed latency to process about 300 Gbyte/s data. real-time output counts different types physics objects, and energy sums. final over...
The ATLAS Level-1 trigger system is responsible for reducing the anticipated LHC collision rate from 40 MHz to less than 100 kHz. This selection counts jet, tau/hadron, electron/photon and muon candidates, with additional triggers missing total energy. results are used by Central Trigger form a Accept decision. decision, along timing signals, sent sub-detectors trigger, while summary information passed into higher levels of system. performance during first collisions will be shown. includes...
The ATLAS Level-1 trigger system is responsible for reducing the anticipated LHC collision rate from 40 MHz to less than 100 kHz. This selection identifies, jet, tau/hadron, electron/photon and muon candidates, with additional triggers missing total energy. These inputs are used by Central Trigger form a Accept decision. decision, along summary information, then passed into higher levels of sub-detectors, which also receive clock trigger. Results commissioning cosmic rays its performance...
The ATLAS trigger configuration system uses a centrally provided relational database to store the configurations for all levels of system. used at any point during data taking is maintained in this database. A interface by TriggerTool, Java-based graphical user interface. TriggerTool has been designed work as both convenient browser and editor general users experts. updates necessitated upgrades changes hardware software first long shut down LHC will be explored.
The ATLAS first-level calorimeter trigger is a hard warebased system designed to identify high-p T jets, electron/photon and tau candidates, measure total missing E T. consists of Preprocessor which digitises 7200 analogue inputs, two digit al multicrate processor systems find en ergy sums, localised energy deposits (electron/ph oton candidates). In order provide quic kly enough, the hardware parallel pipelined. Experience so far Jet/Energy-sum Cluster Processor production, commissioning,...
The ATLAS Level-1 Calorimeter Trigger is a hardwarebased system which aims to identify objects with high transverse momentum within an overall latency of 2.5μs. It composed PreProcessor (PPr) digitises 7200 analogue input channels, determines the bunch crossing interaction, applies digital noise filter, and provides fine calibration; two subsequent processors. needs various channel dependent parameters be set in order provide signals are aligned time have proper energy calibration. different...
The ATLAS Level-1 calorimeter trigger is a hardware-based system with the goal of identifying high-pT objects and to measure total missing ET in calorimeters within an overall latency 2.5 s. This composed Preprocessor which digitises about 7200 analogue input channels two digital processors identify signatures calculate energy sums. part consists multi-stage, pipelined custom-built modules. high demands on connectivity between initial stage modules are presented. Furthermore techniques...