A5061232174- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Nuclear physics research studies
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Astrophysics and Cosmic Phenomena
- Wine Industry and Tourism
- Linguistic Education and Pedagogy
- Lichen and fungal ecology
- Nuclear Physics and Applications
- Cruise Tourism Development and Management
- Genetics and Physical Performance
- Chemical Reactions and Isotopes
- Neurological Disorders and Treatments
- European Cultural and National Identity
- Nuclear reactor physics and engineering
University of Tübingen
2015-2025
University of Würzburg
2009-2016
Max Planck Institute for Astrophysics
2016
University of Freiburg
2016
Universitat de Barcelona
2016
Johannes Gutenberg University Mainz
2011-2014
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2010
Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca
2010
Karlsruhe Institute of Technology
2005-2010
University of Oregon
2010
This Report summarizes the proceedings of 2015 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments relevant for high precision Standard Model calculations, (II) PDF4LHC parton distributions, (III) issues in theoretical description production Higgs bosons and how to relate experimental measurements, (IV) a host phenomenological studies essential comparing LHC data from Run I predictions projections future measurements II, (V) Monte Carlo event generators.
We present a calculation for single-inclusive large-${p}_{T}$ pion production in longitudinally polarized $\mathrm{pp}$ collisions next-to-leading order QCD. choose an approach where fully analytical expressions the underlying partonic hard-scattering cross sections are obtained. simultaneously rederive corresponding corrections to unpolarized scattering and confirm results existing literature. Our allow calculate double-spin asymmetry ${A}_{\mathrm{LL}}^{\ensuremath{\pi}}$ this process at...
We present results from the analytic calculation of top+antitop+Higgs hadronic production at Next-to-Leading Order in QCD interfaced with parton-shower Monte Carlo event generators POWHEG BOX framework. consider kinematic distributions top quark and Higgs boson 8 TeV Large Hadron Collider study theoretical uncertainties due to specific choices renormalization/factorization scales parton-showering algorithms, namely PYTHIA HERWIG. The importance spin-correlations decay stages a top/antitop is...
A bstract We present a new event generator for the simulation of both neutral- and charged-current deep inelastic scattering (DIS) at next-to-leading order in QCD matched to parton showers using POWHEG method. Our implementation builds on existing BOX framework originally designed hadron-hadron collisions, supplemented by considerable extensions account genuinely different kinematics inherent lepton-hadron collisions. In particular, we momentum mappings that conserve special found DIS, which...
We present the calculation of next-to-leading-order QCD corrections to electroweak $pp\ensuremath{\rightarrow}{e}^{+}{\ensuremath{\nu}}_{e}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}jj$ and $pp\ensuremath{\rightarrow}{e}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{e}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}jj$ production at CERN LHC in form a fully flexible parton-level Monte Carlo program. The total cross sections are modest, changing leading-order results...
We present a next-to-leading order QCD calculation for ${e}^{+}{\ensuremath{\nu}}_{e}{\ensuremath{\mu}}^{+}{\ensuremath{\nu}}_{\ensuremath{\mu}}jj$ and ${e}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{e}{\ensuremath{\mu}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}jj$ production via weak-boson fusion at hadron collider in the form of fully flexible parton-level Monte Carlo program, which allows experimentally accessible observables within realistic selection cuts. The...
We present results of the first calculation next-to-leading-order electroweak corrections to W-boson pair production at LHC that fully takes into account leptonic decays and off-shell effects. Employing realistic event selections, we discuss in situations are typical for study pairs as a signal process or Higgs-boson H → WW∗, which represents an irreducible background. In particular, compare full results, obtained treating resonances complex-mass scheme, previous so-called double-pole...
The first complete calculation of the next-to-leading-order electroweak corrections to four-lepton production at LHC is presented, where all off-shell effects intermediate Z bosons and photons are taken into account. Focusing on mixed final state $\mu^+\mu^-e^+e^-$, we study differential cross sections that particularly interesting for Higgs-boson analyses. divided photonic purely weak corrections. former exhibit patterns familiar from similar W/Z-boson processes with very large radiative...
This report summarises the properties of Standard Model processes at 100 TeV pp collider. We document production rates and typical distributions for a number benchmark processes, discuss new dynamical phenomena arising highest energies available this intrinsic physics interest in measurement these as well their role backgrounds New Physics searches.
We present a state-of-the-art calculation of the next-to-leading-order electroweak corrections to ZZ production, including leptonic decays Z bosons into μ + −e+e− or − final states. use complete leading-order and matrix elements for four-lepton contributions virtual photons all off-shell effects bosons, where finite Z-boson width is taken account using complex-mass scheme. The are implemented Monte Carlo programs allowing evaluation arbitrary differential distributions. integrated cross...
Vector-boson fusion processes are an important tool for the study of electroweak symmetry breaking at hadron colliders, since they allow to distinguish a light Higgs boson scenario from strong weak-boson scattering. We here consider channels $WW\ensuremath{\rightarrow}ZZ$ and $ZZ\ensuremath{\rightarrow}ZZ$ as part $Z$ pair production in association with two tagging jets. present calculation NLO QCD corrections cross sections...
Vector-boson scattering processes are of great importance for the current run-II and future runs Large Hadron Collider. The presence triple quartic gauge couplings in process gives access to sector Standard Model (SM) possible new-physics contributions there. To test any hypothesis, sound knowledge SM is necessary, with a precision which at least matches experimental uncertainties existing forthcoming measurements. In this article we present detailed study vector-boson two positively-charged...
A bstract We present a next-to-leading order QCD calculation for the electroweak production of pair same-sign weak gauge bosons in association with three jets region dominated by vector-boson scattering, and its matching parton-shower programs according to POWHEG formalism. Our allows an accurate description jet observables crucial optimization experimental analyses vector boson scattering processes. find corrections effects moderate size inclusive quantities distributions tagging jets....
We present two precision tools for the simulation of Higgs-pair production via vector-boson fusion in kappa framework parameterization non-standard Higgs couplings. A new implementation process is developed POWHEG BOX program that can be used to provide predictions at next-to-leading order (NLO) QCD matched parton showers (PS). In addition, existing proVBFHH computation next-to-next-to-leading (NNLO) and next-to-next-to-next-to-leading corrections extended account values couplings different...
We present an update of existing implementation $WZjj$ production via vector-boson scattering in the framework POWHEG BOX program. In particular, previously unavailable semi-leptonic and fully hadronic decay modes intermediate vector bosons are provided, operators dimension six effective-field theory approach to account for physics beyond Standard Model electroweak sector included. For selected applications phenomenological results provided illustrate capabilities new The impact considered...
We explore the potential of CERN Large Hadron Collider to access a strongly interacting electroweak symmetry breaking sector via weak boson scattering with ${W}^{+}{W}^{\ensuremath{-}}jj$, $ZZjj$, and ${W}^{\ifmmode\pm\else\textpm\fi{}}Zjj$ final states. As examples models scalar or vector resonances we concentrate on scenario heavy Higgs warped Higgsless Kaluza-Klein model narrow spin-one resonances. The signal most prominent background processes are evaluated using exact tree-level matrix...
In this Snowmass 2013 white paper, we review the effective field theory approach for studies of non-standard electroweak interactions in vector boson pair and triple production scattering. We present an overview implementation dimension six eight operators MadGraph5, VBFNLO, WHIZARD, provide relations between coefficients these higher dimensions used programs anomalous couplings approach. perform a tuned comparison predictions multi-boson processes including with WHIZARD. discuss role...
Abstract We present a systematic investigation of parton-shower and matching uncertainties perturbative origin for Higgs-boson production via vector-boson fusion. To this end we employ different generators at next-to-leading order QCD accuracy matched with shower Monte Carlo programs, , next-to-next-to-leading calculation. thoroughly analyse the intrinsic sources uncertainty within each generator, then compare predictions among tools using respective recommended setups. Within typical fusion...
Through a series of simulated observations, we investigate the capability instruments aboard forthcoming THESEUS mission for detection characteristic signal from decaying dark matter (DM) in keV-MeV energy range. We focus our studies on three well studied Standard Model extensions hosting axionlike particles, photon, and sterile neutrino DM candidates. show that, due to sensitivity THESEUS' x gamma imaging spectrometer instrument, existing constraints parameters can be improved by factor up...
We present an implementation of electroweak ZZjj production in the POWHEG BOX V2 framework, upgrade program which includes a number new features that are particularly helpful for high-multiplicity processes. consider leptonic and semi-leptonic decay modes Z bosons, take non-resonant contributions spin correlations final-state particles into account. In case decays to leptons, we also include interactions beyond Standard Model arise from effective Lagrangian CP conserving violating operators...
We present an implementation of Higgs boson production via vector-boson fusion in association with three jets at hadron colliders the POWHEG BOX, a framework for matching NLO-QCD calculations parton-shower programs. Our work provides means to precisely describe properties extra jet activity reactions that are used suppression QCD backgrounds by central veto techniques. For representative setup CERN LHC we verify uncertainties related effects mild distributions third jet, contrast what has...