A5107005718- 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
- Advanced Data Storage Technologies
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Scientific Computing and Data Management
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Big Data Technologies and Applications
- Esophageal and GI Pathology
- Probabilistic and Robust Engineering Design
- Particle accelerators and beam dynamics
- Esophageal Cancer Research and Treatment
- Optimal Experimental Design Methods
- Gaussian Processes and Bayesian Inference
University College London
2016-2025
AGH University of Krakow
2016-2024
Jagiellonian University
2017-2024
A. Alikhanyan National Laboratory
2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
Atlas Scientific (United States)
2024
The University of Adelaide
2014-2023
University of Pennsylvania
2023
European Organization for Nuclear Research
2023
We provide an overview of the status Monte-Carlo event generators for high-energy particle physics. Guided by experimental needs and requirements, we highlight areas active development, opportunities future improvements. Particular emphasis is given to physics models algorithms that are employed across a variety experiments. These common themes in generator development lead more comprehensive understanding at highest energies intensities, allow be tested against wealth data have been...
Histogramming is often taken for granted, but the power and compactness of partially aggregated, multidimensional summary statistics, their fundamental connection to differential integral calculus make them formidable statistical objects, especially when very large data volumes are involved. But expressing these concepts robustly efficiently in high-dimensional parameter spaces samples a highly non-trivial challenge – doubly so if resulting library remain usable by scientists as opposed...
First released in 2010, the Rivet library forms an important repository for analysis code, facilitating comparisons between measurements of final state particle collisions and theoretical calculations those states. We give overview Rivet's current design implementation, its uptake preservation physics results, summarise recent developments including propagation MC systematic-uncertainty weights, heavy-ion $ep$ physics, systems detector emulation. In addition, we provide a short user guide...
We provide an overview of the status Monte-Carlo event generators for high-energy particle physics. Guided by experimental needs and requirements, we highlight areas active development, opportunities future improvements. Particular emphasis is given to physics models algorithms that are employed across a variety experiments. These common themes in generator development lead more comprehensive understanding at highest energies intensities, allow be tested against wealth data have been...
Histogramming is often taken for granted, but the power and compactness of partially aggregated, multidimensional summary statistics, their fundamental connection to differential integral calculus make them formidable statistical objects, especially when very large data volumes are involved. But expressing these concepts robustly efficiently in high-dimensional parameter spaces samples a highly non-trivial challenge – doubly so if resulting library remain usable by scientists as opposed...
Abstract Poor computing efficiency of precision event generators for LHC physics has become a bottleneck Monte-Carlo simulation campaigns. We provide solutions to this problem by focusing on two major components general-purpose generators: The PDF evaluator and the matrix-element generator. For typical production setup in ATLAS experiment, we show that can consume about 80% total runtime. Using NLO simulations $$pp\rightarrow \ell ^+\ell ^-+\text {jets}$$ <mml:math...
Abstract The climate crisis and the degradation of world's ecosystems require humanity to take immediate action. international scientific community has a responsibility limit negative environmental impacts basic research. HECAP+ communities ( High Energy Physics, Cosmology, Astroparticle Hadron Nuclear Physics ) make use common similar experimental infrastructure, such as accelerators observatories, rely similarly on processing big data. Our therefore face challenges improving sustainability...
This Report summarizes the proceedings of 2017 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments relevant for high precision Standard Model calculations, (II) theoretical uncertainties and dataset dependence parton distribution functions, (III) in jet substructure techniques, (IV) issues description production Higgs bosons how to relate experimental measurements, (V) phenomenological studies essential comparing LHC data from Run II predictions...
Abstract We propose the Positive Resampler to solve problem associated with event samples from state-of-the-art predictions for scattering processes at hadron colliders typically involving a sizeable number of events contributing negative weight. The proposed method guarantees positive weights all physical distributions, and correct description observables. A desirable side product is possibility reduce size produced by General Purpose Event Generators, thus lowering resource demands...
We present a scalable technique for the simulation of collider events with multijet final states, based on an improved parton-level event file format and $\mathrm{I}/\mathrm{O}$. The method is implemented both leading- next-to-leading-order QCD calculations. perform comprehensive analysis computing performance validate our new framework using Higgs-boson plus production up to seven jets. make resulting code base available public use.
We present theoretical predictions for the production of top-quark pairs in association with jets at LHC including electroweak (EW) corrections. First, we and compare differential fixed-order level $$t\bar{t}$$ $$t\bar{t}+\text {jet}$$ considering dominant NLO EW corrections order $${{\mathcal {O}}}(\alpha _\mathrm {s}^2 \alpha )$$ {s}^3 respectively together all additional subleading Born one-loop contributions. The are enhanced large energies particular alter shape top transverse momentum...
We review the main software and computing challenges for Monte Carlo physics event generators used by LHC experiments, in view of High-Luminosity (HL-LHC) programme. This paper has been prepared HEP Software Foundation (HSF) Physics Event Generator Working Group as an input to LHCC HL-LHC computing, which started May 2020.
Streams of event weights in particle-level Monte Carlo generators are a convenient and immensely CPU-efficient approach to express systematic uncertainties phenomenology calculations, providing variations on the nominal prediction within single sample. But lack common standard for labelling these variation streams across different tools has proven be major limitation event-processing analysers alike. Here we propose well-defined, extensible community naming, ordering, interpretation weight...
The Rivet toolkit is the primary mechanism for phenomenological preservation of collider-physics measurements, containing both a computational core and API analysis implementation, large collection more than thousand preserved analyses. In this note we summarise main changes in new 4 major release series. These include generalisation semantically coherent model histograms related data objects, thorough clean-up inelegant legacy observable-computation tools, systems extended analysis-data,...
The climate crisis and the degradation of world's ecosystems require humanity to take immediate action. international scientific community has a responsibility limit negative environmental impacts basic research. HECAP+ communities (High Energy Physics, Cosmology, Astroparticle Hadron Nuclear Physics) make use common similar experimental infrastructure, such as accelerators observatories, rely similarly on processing big data. Our therefore face challenges improving sustainability our This...
The Rivet toolkit is the primary mechanism for phenomenological preservation of collider-physics measurements, containing both a computational core and API analysis implementation, large collection more than thousand preserved analyses. In this note we summarise main changes in new 4 major release series. These include generalisation semantically coherent model histograms related data objects, thorough clean-up inelegant legacy observable-computation tools, systems extended analysis-data,...
We scrutinise the ability of primary QED final-state resummation tools, combined with electroweak virtual corrections, to reproduce exact next-to-leading order calculation in four-charged-lepton final state. further examine dependence findings on lepton-photon dressing-cone size as well resonance identification strategy. Overall we find excellent agreement fixed-order result, but partial differences not directly connected resummation-induced higher-order effects at few-percent level are...
Histogramming is often taken for granted, but the power and compactness of partially aggregated, multidimensional summary statistics, their fundamental connection to differential integral calculus make them formidable statistical objects, especially when very large data volumes are involved. But expressing these concepts robustly efficiently in high-dimensional parameter spaces samples a highly non-trivial challenge -- doubly so if resulting library remain usable by scientists as opposed...
Experimental limits on supersymmetry and similar theories are difficult to set because of the enormous available parameter space generalize complexity single points. Therefore, more phenomenological, simplified models becoming popular for setting experimental limits, as they have clearer physical interpretations. The use these model a real limit concrete theory has not, however, been demonstrated. This paper recasts into specific complete model, minimal supergravity. Limits obtained under...
Common and community software packages, such as ROOT, Geant4 event generators have been a key part of the LHC's success so far continued development optimisation will be critical in future. The challenges are driven by an ambitious physics programme, notably LHC accelerator upgrade to high-luminosity, HL-LHC, corresponding detector upgrades ATLAS CMS. In this document we address issues for that is used multiple experiments (usually even more widely than CMS) maintained teams developers who...
In this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. particular consider NNLO QCD fixed-order and parton-level based on NLO multi-jet merging following MEPS@NLO scheme. both electroweak (EW) corrections are incorporated different approximations. We focus several transverse-momentum invariant mass distribution, highly relevant ongoing physics program discuss comparisons between considered approximations their...
Experimental limits on supersymmetry and similar theories are difficult to set because of the enormous available parameter space generalize complexity single points. Therefore, more phenomenological, simplified models becoming popular for setting experimental limits, as they have clearer physical implications. The use these model a real limit concrete theory has not, however, been demonstrated. This paper recasts into specific complete model, minimal supergravity. Limits obtained under...
The Rivet toolkit is the primary mechanism for phenomenological preservation of collider-physics measurements, containing both a computational core and API analysis implementation, large collection more than thousand preserved analyses. In this note we summarise main changes in new 4 major release series. These include generalisation semantically coherent model histograms related data objects, thorough clean-up inelegant legacy observable-computation tools, systems extended analysis-data,...
Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. We summarise new developments, essential features, and ongoing improvements within 3 release series. Physics include higher-order electroweak corrections, simulations photoproduction hard diffraction at NLO QCD, heavy-flavour matching multijet merging, spin-polarised cross section calculations, model colour reconnections. In addition, modelling hadronisation,...
A bstract S herpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. We summarise new developments, essential features, and ongoing improvements within 3 release series. Physics include higher-order electroweak corrections, simulations photoproduction hard diffraction at NLO QCD, heavy-flavour matching multijet merging, spin-polarised cross section calculations, model colour reconnections. In addition, modelling...