Merijn Van De Klundert
A5041191564- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Medical Imaging Techniques and Applications
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Gamma-ray bursts and supernovae
- Radioactivity and Radon Measurements
- Radiation Therapy and Dosimetry
- Particle Accelerators and Free-Electron Lasers
- Stochastic processes and financial applications
- Atomic and Subatomic Physics Research
- Random Matrices and Applications
- Geophysics and Gravity Measurements
- Magnetic confinement fusion research
- Distributed and Parallel Computing Systems
- Optical properties and cooling technologies in crystalline materials
- advanced mathematical theories
- CCD and CMOS Imaging Sensors
Deutsches Elektronen-Synchrotron DESY
2019-2024
Institute of High Energy Physics
2022-2024
A. Alikhanyan National Laboratory
2022-2024
Universität Hamburg
2023
University of Antwerp
2015-2019
Marmara University
2019
Kafkas University
2019
University of Amsterdam
2013
Brookhaven National Laboratory
2013
A search for invisible decays of a Higgs boson is performed using proton-proton collision data collected with the CMS detector at LHC in 2016 center-of-mass energy , corresponding to an integrated luminosity 35.9. The targets production via vector fusion. are found be agreement background contributions from standard model processes. An observed (expected) upper limit 0.33 (0.25), 95% confidence level, placed on branching fraction decay particles, assuming rates and mass 125.09 GeV. Results...
The impact-parameter dependent saturation model (IP-Sat) is a simple dipole that incorporates key features of the physics gluon and matches smoothly to perturbative QCD expression at large ${Q}^{2}$ for given $x$. It was previously shown gives good description HERA data suggesting evidence effects small has also been applied proton-proton proton-nucleus collisions provides basis IP-Glasma initial conditions in heavy ion collisions. Here we present reanalysis available electron-proton Bjorken...
A search for new physics in proton-proton collisions having final states with an electron or muon and missing transverse energy is presented. The analysis uses data collected 2012 the CMS detector, at LHC center-of-mass of 8 TeV, corresponding to integrated luminosity $19.7\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. No significant deviation mass distribution charged lepton-neutrino system from standard model prediction found. Mass exclusion limits up 3.28 TeV 95% confidence level a...
A search for supersymmetry is presented based on proton-proton collision events containing identified hadronically decaying top quarks, no leptons, and an imbalance ${p}_{\mathrm{T}}^{\mathrm{miss}}$ in transverse momentum. The data were collected with the CMS detector at CERN LHC a center-of-mass energy of 13 TeV, correspond to integrated luminosity $35.9\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. Search regions are defined terms multiplicity bottom quark jet candidates,...
A search for standard model production of four top quarks ( tt¯tt¯ ) is reported using events containing at least three leptons e,μ or a same-sign lepton pair. The are produced in proton-proton collisions center-of-mass energy 13 TeV the LHC, and data sample, recorded 2016, corresponds to an integrated luminosity 35.9 fb-1 . Jet multiplicity flavor used enhance signal sensitivity, dedicated control regions constrain dominant backgrounds. observed expected significances are, respectively, 1.6...
A bstract measurement of the groomed jet mass in PbPb and pp collisions at a nucleon-nucleon center-of-mass energy 5.02 TeV with CMS detector LHC is presented. Jet grooming recursive procedure which sequentially removes soft constituents until pair hard subjets found. The resulting jets can be used to study modifications parton shower evolution presence hot dense medium created heavy ion collisions. Predictions properties from pythia herwig ++ event generators agree measurements When...
A search is presented for the associated production of a Higgs boson with top quark pair in all-jet final state. Events containing seven or more jets are selected from sample proton-proton collisions at $\sqrt{s} =$ 13 TeV collected CMS detector LHC 2016, corresponding to an integrated luminosity 35.9 fb$^{-1}$. To separate $\mathrm{t}\overline{\mathrm{t}}$H signal irreducible $\mathrm{t}\overline{\mathrm{t}}+\mathrm{b}\overline{\mathrm{b}}$ background, analysis assigns leading order matrix...
A search is presented for massive narrow resonances decaying either into two Higgs bosons, or a boson and W Z boson. The decay channels considered are HH $\to \mathrm{b\overline{b}}\tau^{+}\tau^{-}$ VH \mathrm{q\overline{q}}\tau^{+}\tau^{-}$, where H denotes the boson, V This analysis based on data sample of proton-proton collisions collected at center-of-mass energy 13 TeV by CMS Collaboration, corresponding to an integrated luminosity 35.9 fb$^{-1}$. For TeV-scale mass considered,...
A search for new physics is carried out in events with at least three electrons or muons any combination, jets, and missing transverse momentum. Results are based on the sample of proton-proton collision data produced by LHC a center-of-mass energy 13 TeV collected CMS experiment 2016. The analyzed corresponds to an integrated luminosity 35.9 fb−1. Events classified according number b momentum, hadronic invariant mass same-flavor dilepton pairs opposite charge. No significant excess above...
In this talk, we present a global analysis of available small-x data on inclusive DIS and exclusive diffractive processes, including the latest from combined HERA reduced cross sections within Impact-Parameter dependent Saturation (IP-Sat) Model. The impact-parameter dependence dipole amplitude is crucial in order to have unified description both processes. With parameters model fixed via fit high-precision cross-section, compare predictions for structure functions, longitudinal function,...