A5107143388- 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
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Stochastic processes and statistical mechanics
- Manufacturing Process and Optimization
- Distributed and Parallel Computing Systems
- European history and politics
- Computer Graphics and Visualization Techniques
- Sociology and Education Studies
- Radiation Detection and Scintillator Technologies
- Physics and Engineering Research Articles
- International Science and Diplomacy
- Cosmology and Gravitation Theories
- Public Administration and Political Analysis
- Markov Chains and Monte Carlo Methods
European Organization for Nuclear Research
2016-2025
Universitat Ramon Llull
2023-2024
École Polytechnique Fédérale de Lausanne
2023
Universitat de Barcelona
2023
GANIL
2019
Goethe University Frankfurt
2019
Institute for Sports Medicine
2019
Walter de Gruyter (Germany)
2019
Baidu (China)
2019
Délégation Paris 6
2019
The semiconductor varactor using surface space charge is analyzed and measurements made on several experimental units are described. chief characteristics of this device its capacity-voltage dependence negligible dc conduction. particular system used in work a thermally grown oxide silicon. A theory developed from the relation shown to agree with data over wide range silicon resistivity. for optimum operation both ac biasing derived compare performance that p-n junction varactor. result...
Abstract Substituierte Triphenyl‐ und Tricyclohexyl‐phosphinalkylene reagieren mit Chlorphosphinen R″ 2 PCl unter nucleophiler Substitution nicht nur zu den entsprechenden Phosphoniumsalzen 1 – 5 , sondern auch in Abhängigkeit der Substituenten, des Mol‐Verhältnisses Reaktionspartner sowie Temperatur intermolekularer Umylidierung Verbindungen Typs PCR=P(C 6 H ) 3 ( 14 bzw. P=CR7P(c‐C 11 15 18 ). Letztere werden durch Umsetzung Wasser Alkylhalogeniden näher charakterisiert liefern...
Six of the key physics measurements that will be made by LHCb experiment, concerning CP asymmetries and rare B decays, are discussed in detail. The "road map" towards precision is presented, including use control channels other techniques to understand performance detector with first data from LHC.
Abstract Eine Reihe von Phosphonium‐, Arsonium‐, Stibonium‐ und Sulfoniumsalzen werden dargestellt deren CH‐Dissoziationskonstanten unter vergleichbaren Bedingungen potentiometrisch bestimmt. Die pK a ′‐Werte sind der Konstitution Oniumsalze abhängig. – Phosphinalkylene des Typs (C 6 H 5 ) 3 PCRP(C 2 reagieren mit Chlorwasserstoff entweder Addition zu Phosphoniumsalzen [(C PCHRP(C ]Cl (R H, CH , C ( D oder Spaltung Phosphin‐Kohlenstoff‐Bindung PCH R]Cl [R COCH CO P(C ] 8–10...
The LHCb VELO Upgrade I, currently being installed for the 2022 start of LHC Run 3, uses silicon microchannel coolers with internally circulating bi-phase \cotwo thermal control hybrid pixel modules operating in vacuum. This is largest scale application this technology to date. Production was completed July 2019 and assembly into cooling structures September 2021. paper describes R\&D path supporting production motivation design choices. have excellent peformance, low uniform mass, no...
The impurity content of synthetic calciumdifluoride (fluorite, CaF2) single crystals produced for optical applications in the deep ultraviolet (DUV) and infrared (IR) spectral regions are investigated by luminescence absorption spectroscopy. Lead, oxygen, rare earth (RE) ions, namely, trivalent (Ce3+, Pr3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, Er3+, Yb3+) divalent (Eu2+) identified as common impurities. RE ions dominating impurities IR grade sample concentration this is found to be about 100...
Conduction band electrons, valence holes and subsequently self-trapped excitons (STEs) are created in CaF2 SrF2 by two-photon absorption of 5.9 eV photons. Transient after femtosecond pulse excitation is measured at probe wavelengths 3.0 4.4 eV, respectively. photons yields a fast initial response due to conduction while we sample the F centre part STE determine its formation time constant be 690 fs. Excitation also reduction luminescence sampled nanoseconds creation that attributed forced...
Abstract Diphenylphosphinsäurechlorid und ‐thiophosphinsäurechlorid reagieren mit Triphenyl‐phosphinalkylenen (C 6 H 5 ) 3 PCRR′ in Abhängigkeit der Substituenten R R′ entweder zu phosphinylsubstituierten Phosphoniumsalzen 1 8 oder unter intermolekularer Umylidierung den Verbindungen 2–7 vom Typ PCRP(O)(C 2 bzw. PCRP(S)(C . Letztere werden durch Umsetzung Chlorwasserstoff Methyljodid näher charakterisiert. Die Reaktionsmechanismen Berücksichtigung pK a ′‐Werte phosphinyl‐,...
We studied the decay of self-trapped excitons (STE's) in ${\mathrm{BaF}}_{2},$ ${\mathrm{SrF}}_{2},$ and ${\mathrm{CaF}}_{2}$ excited at room temperature by two-photon absorption femtosecond laser pulses recording time-resolved triplet-luminescence spectra. For ${\mathrm{BaF}}_{2}$ we detected significant spectral changes as a function time but this effect was much less pronounced for ${\mathrm{SrF}}_{2}$ barely to be identified ${\mathrm{CaF}}_{2}.$ A careful analysis data revealed two...