B. Schwenker
A5068718364- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- CCD and CMOS Imaging Sensors
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Radiation Effects in Electronics
- Superconducting Materials and Applications
- Black Holes and Theoretical Physics
- Silicon and Solar Cell Technologies
- Astrophysics and Cosmic Phenomena
- Advanced X-ray and CT Imaging
- Atomic and Subatomic Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Scientific Computing and Data Management
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Simulation Techniques and Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Nuclear physics research studies
- Cosmology and Gravitation Theories
University of Göttingen
2015-2024
High Energy Accelerator Research Organization
2023-2024
Deutsches Elektronen-Synchrotron DESY
2024
Universitat de Barcelona
2023
Johannes Gutenberg University Mainz
2023
Ludwig-Maximilians-Universität München
2023
Technical University of Munich
2023
Max Planck Institute for Physics
2023
Halbleiterlabor of the Max-Planck-Society
2023
Charles University
2012-2023
The Belle II experiment at KEK in Japan considers upgrading its vertex detector system to address the challenges posed by high background levels caused increased luminosity of SuperKEKB collider. One proposal for aims install a 5-layer all monolithic pixel based on fully depleted CMOS sensors 2027. new will use OBELIX MAPS chips improve robustness and reduce occupancy through small fast pixels. This causes better track finding, especially low transverse momenta tracks. text focus predecessor...
Abstract Targeting a peak luminosity of 6 × 10 35 cm -2 s -1 , the Belle II experiment at SuperKEKB in Japan is considering an upgrade its interaction region. This involves vertex detector, which will be replaced by new fully pixelated detector (VTX). A monolithic CMOS pixel sensor named OBELIX (Optimized BELle pIXel) proposed to used VTX. Based on existing TJ-Monopix2 chip initially developed for ATLAS Inner Tracker (ITk) upgrade, designed 180 nm process with improved matrix and additional...
The DEPFET collaboration develops highly granular, ultra-transparent active pixel detectors for high-performance vertex reconstruction at future collider experiments. characterization of detector prototypes has proven that the key principle, integration a first amplification stage in detector-grade sensor material, can provide comfortable signal to noise ratio over 40 thickness 50-75 $\mathrm{\mathbf{\mu m}}$. ASICs have been designed and produced operate with required read-out speed. A...
Abstract The Belle II collaboration has initiated a program to upgrade its detector in order address the challenges set by increase of SuperKEKB collider luminosity, targeting 6×10 35 cm 2 s -1 . A monolithic CMOS pixel sensor named OBELIX (Optimized BELle pIXel) is proposed equip 5 detection layers upgrading current vertex detector. Based on existing TJ-Monopix2, currently designed 180 nm process.
We report preliminary results on the analysis of three-body Y(10860)=> B barB pi, Y(10860) => (B barB* + c.c.) pi and B* decays including an observation Zb(10610)+- pi-+ [B barB*+c.c]+- Zb(10650)+- [B* barB*]+- as intermediate channels. measure branching fractions to be Br(Y(10860)=> barB*+c.c.]+- pi-+)=(28.3+-2.9+-4.6)x10^{-3} pi-+)=(14.1+-1.9+-2.4)x10^{-3} set 90% C.L. upper limit barB]+- pi-+)<4.0x10^{-3}. also amplitude Y(10860)=>Y(nS)pi+pi-, n=1,2,3 internal structure...
In order to profit from the increased luminosity provided by SuperKEKB accelerator in future, improvements should be brought current Belle II detector. The collaboration has thus proposed upgrade of inner vertex detector a new VTX detector, with target cope higher luminosity. A DMAPS sensor named OBELIX is and expected submitted 2024. design ASIC based on previously designed prototype TJ-Monopix2 chip, will feature completely digital periphery.
EUDAQ is a generic data acquisition software developed for use in conjunction with common beam telescopes at charged particle lines. Providing high-precision reference tracks performance studies of new sensors, are essential the research and development towards future detectors high-energy physics. As time highly limited resource, has been designed reliability ease-of-use mind. It enables flexible integration different independent devices under test via their specific systems into top-level...
In this paper we explore the effect of $\delta$-ray emission, fluctuations in th e signal deposition on detection charged particles silicon-based detec tors. We show that these two effects ultimately limit resolution can be achieved by interpolation finely segmented position-sensitive solid-state devices.
The Belle II experiment at the super KEK B-factory (SuperKEKB) in Tsukuba, Japan, has been collecting $e^+e^-$ collision data since March 2019. Operating a record-breaking luminosity of up to $4.7\times10^{34} \ cm^{-2}s^{-1}$, corresponding $424 fb^{-1}$ recorded. VerteX Detector (VXD) is central detector and its physics program plays crucial role reconstructing precise primary decay vertices. It consists outer 4-layer Silicon Vertex (SVD) using double sided silicon strips inner two-layer...
Monte Carlo simulations in high-energy physics experiments face the non-trivial task of simulating realistically response individual detector components, while keeping costs terms CPU time reasonably low.Such simulation procedures are called digitization and have to incorporate as much detail possible, performing fast enough.Here, we present our approach Belle II vertex (VXD) using ILC software framework.We simulate DEPFET (DEPleted Field Effect Transistor) pixel detectors (PXD) double-sided...
The Belle II experiment at the Super Flavour Factory SuperKEKB in Tsukuba, Japan, has started regular operation with its final detector setup spring 2019. vertexing system consists of four layers double sided silicon strips (SVD) and two DEPFET pixel sensors (PXD). These inner most are arranged radii 14 mm 22 around beam pipe. sizes down to 50 $\mu$m $\times$ 55 thinned 75 thickness minimize multiple scattering. They crucial for reconstructing secondary decay vertices short lived B D mesons...
The construction of the new accelerator at Japanese Flavour Factory (KEKB) has been finalized and commissioning its detector (Belle~II) is planned by early 2017. This e$^{+}$e$^{-}$ machine ("SuperKEKB") will deliver an instantaneous luminosity $8\times10^{35}\mathrm{~cm}^{-2}\mathrm{s}^{-1}$, which 40 times higher than world record set KEKB. In order to be able fully exploit increased number events provide high precision measurements decay vertex B meson systems in such a harsh environment,...