Peter Richardson
A5051413581- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Biblical Studies and Interpretation
- Archaeology and Historical Studies
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- South African History and Culture
- African history and culture studies
- Distributed and Parallel Computing Systems
- Particle Detector Development and Performance
- Historical and Linguistic Studies
- Black Holes and Theoretical Physics
- Ancient Mediterranean Archaeology and History
- Classical Antiquity Studies
- Advanced Data Storage Technologies
- Theology and Canon Law Studies
- Cosmology and Gravitation Theories
- Historical and Religious Studies of Rome
- Christian Theology and Mission
- Neutrino Physics Research
- American Constitutional Law and Politics
- Australian History and Society
- Ancient Egypt and Archaeology
- Jewish and Middle Eastern Studies
Durham University
2014-2024
San Francisco State University
2016-2022
Baylor University
2022
European Organization for Nuclear Research
2003-2020
Institut Universitaire de France
2014
Laboratoire de Physique Théorique et Hautes Energies
2014
University of Toronto
1996-2013
Philadelphia University
2008
University of Pennsylvania
2008
University of Bonn
2008
In this paper we describe Herwig++ version 2.3, a general-purpose Monte Carlo event generator for the simulation of hard lepton-lepton, lepton-hadron and hadron-hadron collisions. A number important scattering processes are available, together with an interface via Les Houches Accord to specialized matrix element generators additional processes. The Beyond Standard Model (BSM) physics includes range models allows new be added by encoding Feynman rules model. parton-shower approach is used...
A major new release of the Monte Carlo event generator Herwig++ (version 3.0) is now available. This marks end distinguishing and HERWIG development therefore constitutes first version 7 Herwig family. The features a number significant improvements to simulation, including: built-in NLO hard process calculation for all Standard Model processes, with matching both angular-ordered dipole shower modules via subtractive (MC@NLO-type) multiplicative (Powheg-type) algorithms; QED radiation spin...
We present the report of hadronic working group BOOST2010 workshop held at University Oxford in June 2010. The first part contains a review potential decays highly boosted particles as an aid for discovery LHC and discussion status tools developed to meet challenge reconstructing isolating these topologies. In second part, we new results comparing performance jet grooming techniques top tagging algorithms on common set benchmark channels. also study sensitivity substructure observables...
Abstract A new release of the Monte Carlo event generator Herwig (version 7.2) is now available. This version introduces a number improvements over major 7.0, notably: multi-jet merging with dipole shower at LO and NLO QCD; spin correlations in both angular-ordered parton showers; an improved choice evolution variable shower; to mass effects top decays shower, simulation multiple-parton interactions, including diffractive processes; model for baryonic colour reconnection; strangeness...
Abstract We present an update of the Universal FeynRules Output model format, commonly known as UFO that is used by several automated matrix-element generators and high-energy physics software. detail different features have been proposed extensions initial format during last ten years, collect them in current second version we coin Feynman format. Following philosophy UFO, they consist flexible modular additions to address particle decays, custom propagators, form factors, renormalisation...
Recent LHC data suggest an excess in the Higgs decay channels into $\ensuremath{\gamma}\ensuremath{\gamma}$ and $ZZ$ at $\ensuremath{\sim}125\text{ }\text{ }\mathrm{GeV}$. The current diphoton channel is twice that expected from a standard model (SM) boson; while this may well change with more statistics, it interesting to consider implications should result persist. Here, we assess whether next-to-minimal supersymmetric neutralino dark matter candidate could explain when astrophysical...
We present the activities of "New Physics" working group for "Physics at TeV Colliders" workshop (Les Houches, France, 3--21 June, 2013). Our report includes new computational tool developments, studies implications Higgs boson discovery on physics, important signatures searches natural physics LHC, flavour aspects and assessments interplay between direct dark matter LHC.
We study the logarithmic accuracy of angular-ordered parton showers by considering singular limits multiple emission matrix elements. This allows us to consider different choices for evolution variable and propose a new choice which has both correct behaviour improved performance away from regions. In particular description e+e− event shapes in non-logarithmic region is significantly improved.