M. Schiller
A5015256840- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Stochastic processes and statistical mechanics
- Cosmology and Gravitation Theories
- Distributed and Parallel Computing Systems
- International Science and Diplomacy
- Advanced NMR Techniques and Applications
- Markov Chains and Monte Carlo Methods
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Data Storage Technologies
- Particle accelerators and beam dynamics
- Astrophysics and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
University of Glasgow
2017-2025
Tsinghua University
2020-2023
University of Liverpool
2023
Institut National de Physique Nucléaire et de Physique des Particules
2013-2021
Centre National de la Recherche Scientifique
2013-2021
Université Paris-Saclay
2021
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2021
National Institute for Subatomic Physics
2011-2020
Peking University
2020
State Key Laboratory of Nuclear Physics and Technology
2020
The Vertex Locator (VELO) is a silicon microstrip detector that surrounds the proton-proton interaction region in LHCb experiment. performance of during first years its physics operation reviewed. system operated vacuum, uses bi-phase CO2 cooling system, and sensors are moved to 7 mm from LHC beam for data taking. stability these characteristic features described, details material budget given. calibration timing processing algorithms implemented FPGAs described. fully characterised. have...
A search for time-integrated CP violation in D(0)→h(-)h(+) (h=K, π) decays is presented using 0.62 fb(-1) of data collected by LHCb 2011. The flavor the charm meson determined charge slow pion D(*+)→D(0)π(+) and D(*-)→D[over ¯](0)π(-) decay chains. difference asymmetry between D(0)→K(-)K(+) D(0)→π(-)π(+), ΔA(CP)≡A(CP)(K(-)K(+))-A(CP)(π(-)π(+)), measured to be [-0.82±0.21(stat)±0.11(syst)]%. This differs from hypothesis conservation 3.5 standard deviations.
Abstract Introduction Endrive ZERO: Pushing Forward Efficiency and Safety in Stapling Technology Intro: Since their first appearance 1908 by the Hungarian surgeon Hümér Hültl, Surgical Staplers (SS) have gained massive popularity due to surprising results, improving surgical safety, complication rates operative time optimization. Along evolution, SS been modified according needs approaches. From open surgeries laparoscopy. manual firing electric devices. two rows of staples each side, 3-row...
In neutral meson mixing, a certain class of convolution integrals is required whose solution involves the error function $\mathrm{erf}(z)$ complex argument $z$. We show general shape analytic these integrals, and give expressions which allow normalisation for use in probability density functions. Furthermore, we derive (decay time) acceptance to be included or calculation moments. also describe implementation numerical routines evaluation $w(z)=e^{-z^2}(1-\mathrm{erf}(-iz))$, sometimes...
The LHCb Vertex Locator (VELO) is a silicon strip detector designed to reconstruct charged particle trajectories and vertices produced at the interaction region. During first two years of data collection, 84 VELO sensors have been exposed range fluences up maximum value approximately 45 × 1012 1 MeV neutron equivalent (1 neq). At operational sensor temperature −7 °C, average rate current increase 18 μA per fb−1, in excellent agreement with predictions. effective bandgap has determined using...
Precise knowledge of the location material in LHCb vertex locator (VELO) is essential to reducing background searches for long-lived exotic particles, and identifying jets that originate from beauty charm quarks. Secondary interactions hadrons produced beam-gas collisions are used map VELO. Using this map, along with properties a reconstructed secondary its constituent tracks, $p$-value can be assigned hypothesis originates interaction. A validation procedure presented using photon...
Abstract The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I facilitates operation at higher luminosity and utilises full-detector information the collision rate, critically including use of vertex information. A new locator system, VELO Upgrade, been constructed. core element are double-sided pixelated hybrid silicon modules which operate in vacuum close to beam high radiation environment. construction quality assurance tests these described this paper. incorporate...
This article describes the high-speed system designed to meet challenging requirements for readout of new pixel VErtex LOcator (VELO) upgraded LHCb experiment. All elements electronics chain will be renewed cope with requirement ~40-MHz full-event rate. The sensors equipped VeloPix ASICs and placed at ~5 mm from Large Hadron Collider (LHC) beams in a secondary vacuum tank an extremely high nonhomogeneous radiation environment. front-end (FE) highest occupancy have pixel-hit rates above ~900...
The new LHCb Vertex Locator (VELO) for LHCb, comprising a pixel detector and readout electronics, will be installed in 2021 data taking Run 3 at the LHC. electronics centers around "VeloPix" ASIC front-end operating trigger-less 40MHz. A custom serializer, called gigabit wireline transmitter (GWT), associated protocol have been designed VeloPix. GWT are sent from serializers of VeloPix line rate 5.12 Gb/s, reaching total 2–3 Tb/s full VELO detector. Data over 300-m optic-fiber links to...
This work presents the implementation and performance of a track reconstruction algorithm for main tracking system LHCb. has high efficiency low fraction wrongly reconstructed tracks. It is fast enough to be used in first stage LHCb software trigger quickly confirm or reject decision made by hardware trigger. Moreover, it only reconstruct cosmic muons system, an important sample alignment calibration purposes. Due its good speed, reconstructs tracks standalone at both offline reconstruction....
The Large Hadron Collider beauty (LHCb) detector is designed to detect decays of b- and c- hadrons for the study CP violation rare decays. At end LHC Run 2, many LHCb measurements remained statistically dominated. In order increase trigger yield purely hadronic channels, hardware will be removed, read out at 40 MHz. This, in combination with five-fold luminosity, requires radical changes LHCb's electronics, and, some cases, replacement entire sub-detectors state-of-the-art technologies....
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I facilitates operation at higher luminosity and utilises full-detector information the collision rate, critically including use of vertex information. A new locator system, VELO Upgrade, been constructed. core element are double-sided pixelated hybrid silicon modules which operate in vacuum close to beam high radiation environment. construction quality assurance tests these described this paper. incorporate 200 \mum...
In a field representation, the main symmetry of electromagnetic response complementary metal film structures is described by Babinet principle, which expected to be strictly obeyed in vanishingly thin films perfect electric conductor. On other hand, softer version this based on transmittance, transmittance principle (TBP), not so restrictive. The goal work study how severely broken affects optical such structures. We consider two geometrically distinct series planar from checkerboard family:...
Vertex locator (VELO) is a silicon microstrip detector situated around the interaction point in large Hadron Collider beauty (LHCb) spectrometer at Large Collider. The LHCb experiment dedicated to studying charge conjugation and parity symmetry violation heavy flavor sector rare decays of B mesons. precise reconstruction both primary secondary vertices, obtained by VELO, crucial selection signal events containing b c quarks lifetime measurements. VELO consists two retractable parts that...