Ulrich Heintz
A5056473812- 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
- Neutrino Physics Research
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Black Holes and Theoretical Physics
- Medical and Biological Sciences
- Particle Accelerators and Free-Electron Lasers
- Nuclear reactor physics and engineering
- Atomic and Subatomic Physics Research
- Gamma-ray bursts and supernovae
- 3D IC and TSV technologies
- Distributed and Parallel Computing Systems
- Musculoskeletal Disorders and Rehabilitation
- Radiation Therapy and Dosimetry
- CCD and CMOS Imaging Sensors
- Advanced Queuing Theory Analysis
- Radioactivity and Radon Measurements
- Probability and Risk Models
John Brown University
2024-2025
Brown University
2015-2025
A. Alikhanyan National Laboratory
2022-2024
Institute of High Energy Physics
2017-2024
University of Antwerp
2024
University of California, Davis
2023
Providence College
2019-2022
Columbia University
2002
Boston University
2000
Fermi National Accelerator Laboratory
2000
This report summarizes the work of Energy Frontier New Physics working group 2013 Community Summer Study (Snowmass).
We consider the production at LHC of exotic quarks ${U}^{+}$ charge $Q=+(5/3)e$ and ${D}^{\ensuremath{-}}$ $Q=\ensuremath{-}(4/3)e$ mass ${m}_{*}$ arising in a composite fermion scenario characterized by compositeness scale $\mathrm{\ensuremath{\Lambda}}$. Such states are predicted models higher isospin multiplets (${I}_{W}=1$ or ${I}_{W}=3/2$). Given their charges (such as $5/3$), decays proceed through electroweak interactions. compute decay widths rates for resonant LHC. Partly motivated...
We investigate the prospects for discovery or exclusion of additional Higgs scalars at 14 TeV and 33 LHC in context theories with two doublets. focus on modes largest production rates hadron colliders, namely gluon fusion a heavy CP-even scalar H CP-odd pseudoscalar A. consider sensitivity decay channels to ZZ 4l, A Zh Z ll h bb tautau.
We present the prospects for discovery or exclusion of heavy vector-like charge 2/3 quarks, T, in proton-proton collisions at two center-of-mass energies, 14 and 33 TeV LHC. In this note, pair production T quark its antiparticle, with decays to W boson a b (Wb), top Higgs (tH), Z (tZ) are investigated. $b\bar b$ $W^+W^-$ final states selected study.
We describe technologies which can be developed to produce large area, low cost pixelated tracking detec- tors. These utilize wafer-scale 3D electronics and sensor currently being in industry. This result fully active sensor/readout chip tiles assembled into area arrays with good yield minimal dead area. The ability connect though the bulk of device also provide better electrical performance lower mass.
The replacement of the existing endcap calorimeter in Compact Muon Solenoid (CMS) detector for high-luminosity LHC (HL-LHC), scheduled 2027, will be a high granularity calorimeter. It provide detailed position, energy, and timing information on electromagnetic hadronic showers immense pileup HL-LHC. High Granularity Calorimeter (HGCAL) use 120-, 200-, 300-μm-thick silicon (Si) pad sensors as main active material sustain 1 MeV neutron equivalent fluences up to about 1016 neq cm−2. In order...
We describe a novel application of the end-to-end deep learning technique to task discriminating top quark-initiated jets from those originating hadronization light quark or gluon. The combines algorithms and low-level detector representation high-energy collision event. In this study, we use information simulated CMS Open Data samples construct jet classifiers. To optimize classifier performance progressively add tracking detector, including pixel reconstructed hits impact parameters,...
The Standard Model of electroweak interactions has had great success in describing the observed data over last three decades. precision experimental measurements affords tests at quantum loop level beyond leading order. Despite this it is important to continue confronting with predictions as any deviation would signal new physics. As a fundamental parameter Model, mass W-boson, M_W, particular importance. Aside from being an test SM itself, measurement M_W can be used constrain Higgs boson,...
Three dimensional integrated circuit technologies offer the possibility of fabricating large area arrays sensors with complex electronics minimal dead area, which makes them ideally suited for applications at LHC upgraded detectors and other future detectors. We describe ongoing R&D efforts to demonstrate functionality components such This includes study 3D active edge produce "active tiles" can be tested assembled into arbitrary size high yield.
Machine learning algorithms are gaining ground in high energy physics for applications particle and event identification, analysis, detector reconstruction, simulation trigger. Currently, most data-analysis tasks at LHC experiments benefit from the use of machine learning. Incorporating these computational tools experimental framework presents new challenges. This paper reports on implementation end-to-end deep with CMS software scaling multiple GPUs. The technique combines low-level...
This paper describes a novel algorithm for tagging jets originating from the hadronisation of strange quarks (strange-tagging) with future International Large Detector (ILD) at Linear Collider (ILC). It also presents first application such strange-tagger to Higgs ($h \rightarrow s\bar{s}$) analysis $P(e^-,e^+) = (-80\%,+30\%)$ polarisation scenario, corresponding 900 fb$^{-1}$ initial proposed 2000 data which will be collected by ILD during its 10 years taking $\sqrt{s} 250$ GeV. Upper...