C. Collard

ORCID: 0000-0002-5230-8387
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About
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Research Areas
  • Particle physics theoretical and experimental studies
  • High-Energy Particle Collisions Research
  • Quantum Chromodynamics and Particle Interactions
  • Particle Detector Development and Performance
  • Dark Matter and Cosmic Phenomena
  • Cosmology and Gravitation Theories
  • Computational Physics and Python Applications
  • Neutrino Physics Research
  • Black Holes and Theoretical Physics
  • Astrophysics and Cosmic Phenomena
  • Medical Imaging Techniques and Applications
  • Radiation Detection and Scintillator Technologies
  • Distributed and Parallel Computing Systems
  • Particle Accelerators and Free-Electron Lasers
  • advanced mathematical theories
  • Gamma-ray bursts and supernovae
  • Nuclear reactor physics and engineering
  • Atomic and Subatomic Physics Research
  • International Science and Diplomacy
  • Superconducting Materials and Applications
  • CCD and CMOS Imaging Sensors
  • Scientific Computing and Data Management
  • Optical properties and cooling technologies in crystalline materials
  • Radiation Therapy and Dosimetry
  • Muon and positron interactions and applications

Centre National de la Recherche Scientifique
2016-2025

Institut Pluridisciplinaire Hubert Curien
2016-2025

Université de Strasbourg
2016-2025

Institute of High Energy Physics
2012-2024

University of Antwerp
2002-2024

A. Alikhanyan National Laboratory
2014-2024

Institute of Nuclear Physics of Lyon
2023

Institut de Physique des 2 Infinis de Lyon
2023

Institut National de Physique Nucléaire et de Physique des Particules
2010-2022

Université de Haute-Alsace
2010-2022

The CMS detector at the CERN LHC features a silicon pixel as its innermost subdetector. original has been replaced with an upgraded system (CMS Phase-1 detector) in extended year-end technical stop of 2016/2017. is designed to cope higher instantaneous luminosities that have achieved by after upgrades accelerator during first long shutdown 2013–2014. Compared detector, better tracking performance and lower mass four barrel layers three endcap disks on each side provide hit coverage up...

10.1088/1748-0221/16/02/p02027 article EN cc-by Journal of Instrumentation 2021-02-22

A measurement is presented of elastic deeply virtual Compton scattering e++p→e++γ+p at HERA using data taken with the H1 detector. The cross section measured as a function photon virtuality, Q2, and invariant mass, W, γp system, in kinematic range 2<Q2<20GeV2, 30<W<120GeV |t|<1GeV2, where t squared momentum transfer to proton. compared QCD based calculations.

10.1016/s0370-2693(01)00939-x article EN cc-by Physics Letters B 2001-09-01

Worldwide, there are intensive efforts to identify repurposed drugs as potential therapies against SARS-CoV-2 infection and the associated COVID-19 disease. To date, anti-inflammatory drug dexamethasone (to a lesser extent) RNA-polymerase inhibitor remdesivir have been shown be effective in reducing mortality patient time recovery, respectively, patients. Here, we report results of phenotypic screening campaign within an EU-funded project (H2020-EXSCALATE4COV) aimed at extending repertoire...

10.1038/s41597-022-01532-x article EN cc-by Scientific Data 2022-07-13

A measurement of the derivative (d ln F_2 / d lnx)_(Q^2)= -lambda(x,Q^2) proton structure function is presented in low x domain deeply inelastic positron-proton scattering. For 5*10^(-5)<=x<=0.01 and Q^2>=1.5 GeV^2, lambda(x,Q^2) found to be independent increase linearly with ln(Q^2).

10.1016/s0370-2693(01)01074-7 article EN cc-by Physics Letters B 2001-11-01

The inclusive production of D∗±(2010) mesons in deep-inelastic scattering is studied with the H1 detector at HERA. In kinematic region 1<Q2<100 GeV2 and 0.05<y<0.7 an e+p cross section for D∗± meson 8.50±0.42(stat.)+1.21−1.00(syst.) nb measured visible range ptD∗>1.5 GeV |ηD∗|<1.5. Single double differential sections are compared to perturbative QCD calculations two different evolution schemes. charm contribution proton structure, F2c(x,Q2), determined by extrapolating full phase space. This...

10.1016/s0370-2693(02)01195-4 article EN cc-by Physics Letters B 2002-03-01

The energy resolution of the barrel part CMS Electromagnetic Calorimeter has been studied using electrons 20 to 250 GeV in a test beam. incident electron's was reconstructed by summing measured arrays 3 × or 5 channels. There no significant amount correlated noise observed within these arrays. For at centre crystals, mean stochastic term be 2.8% and constant 0.3%. electrons' which is contained array depends on its position incidence. variation containment with corrected for distribution...

10.1088/1748-0221/2/04/p04004 article EN Journal of Instrumentation 2007-04-11

The ATLAS detector has been designed for operation at the Large Hadron Collider CERN. includes electromagnetic and hadronic liquid argon calorimeters, with almost 200,000 channels of data that must be sampled LHC bunch crossing frequency 40 MHz. calorimeter electronics calibration readout are performed by custom developed specifically these purposes. This paper describes system performance electronics, including noise, energy time resolution, long term stability, taken mainly from...

10.1088/1748-0221/5/09/p09003 article EN Journal of Instrumentation 2010-09-09

There are many possibilities for new physics beyond the Standard Model that feature non-standard Higgs sectors. These may introduce sources of CP violation, and there be mixing between multiple bosons or other scalar bosons. Alternatively, a composite state, even no at all. scenarios have important implications collider as well cosmology, understanding their phenomenology is essential full comprehension electroweak symmetry breaking. This report discusses most relevant theories which go its...

10.48550/arxiv.hep-ph/0608079 preprint EN other-oa arXiv (Cornell University) 2006-01-01

The diffractive photoproduction of J/psi mesons is measured with the H1 detector at ep collider HERA using an integrated luminosity 78 pb^-1. differential cross section d sigma(gamma p -> Y) / t studied in range 2 < |t| 30 GeV^2, where square four-momentum transferred proton vertex. also presented as a function photon-proton centre-of-mass energy W three intervals, spanning 50 200 GeV. A fast rise observed for each and slope effective linear Pomeron trajectory to be alpha^\prime= -0.0135 \pm...

10.1016/j.physletb.2003.06.056 article EN cc-by Physics Letters B 2003-07-22

A search for events with a high-energy isolated electron or muon and missing transverse momentum has been performed at the electron–proton collider HERA using an integrated luminosity of 13.6 pb−1 in e−p scattering 104.7 e+p scattering. Within Standard Model such are expected to be mainly due W boson production subsequent leptonic decay. In interactions one event is observed channel none channel, consistent expectation Model. data total 18 seen channels compared 12.4±1.7 dominated by...

10.1016/s0370-2693(03)00497-0 article EN cc-by Physics Letters B 2003-05-01

Abstract The CMS Inner Tracker, made of silicon pixel modules, will be entirely replaced prior to the start High Luminosity LHC period. One crucial components new Tracker system is readout chip, being developed by RD53 Collaboration, and in particular its analogue front-end, which receives signal from sensor digitizes it. Three different front-ends (Synchronous, Linear, Differential) were designed implemented RD53A demonstrator chip. A dedicated evaluation program was carried out select most...

10.1088/1748-0221/16/12/p12014 article EN cc-by Journal of Instrumentation 2021-12-01
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