A5100761125- 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
- Distributed and Parallel Computing Systems
- Complex Systems and Time Series Analysis
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Statistical Mechanics and Entropy
- Advanced Data Storage Technologies
- Nuclear reactor physics and engineering
- Time Series Analysis and Forecasting
- Financial Risk and Volatility Modeling
- Stock Market Forecasting Methods
- Advanced Thermodynamics and Statistical Mechanics
- Field-Flow Fractionation Techniques
CEA Paris-Saclay
2016-2025
Université Paris-Saclay
2018-2025
Institut de Recherche sur les Lois Fondamentales de l'Univers
2016-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2016-2025
University of California, Santa Cruz
2017-2024
Institut National de Physique Nucléaire et de Physique des Particules
2001-2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
A. Alikhanyan National Laboratory
2024
The University of Adelaide
2014-2023
The final results of the EDELWEISS-I dark matter search using cryogenic heat-and-ionization Ge detectors are presented. data sample corresponds to an increase by a factor 5 in exposure relative previously published results. A recoil energy threshold 13 keV or better was achieved with three 320 g working simultaneously over four months stable operation. Limits on spin-independent cross section for scattering weakly interacting massive particle nucleon derived from accumulated fiducial...
Photon-photon interactions represent an important class of physics processes at the LHC, where quasi-real photons are emitted by both colliding protons. These reactions can result in exclusive production a final state $X$, $p+p \rightarrow p+p+X$. When computing such cross sections, it has already been shown that finite size effects protons to consider for realistic estimate sections. first results have essential understanding case heavy-ion collisions low invariant mass range, heavy ions...
The geometric scaling property observed in the HERA data at small x, that deep inelastic scattering (DIS) total cross-section is a function of only variable Q^2*x^\lambda, has been argued to be manifestation saturation regime QCD and scale Q^2_s(x) x^{-\lambda}. We show this implies similar context diffractive DIS we observe, for several observables, experimental from confirm expectations scaling.
We study the discovery potential of axion-like particles (ALP), pseudo-scalars weakly coupled to Standard Model fields, at Large Hadron Collider (LHC). Our focus is on ALPs electromagnetic field, which would induce anomalous scattering light-by-light. This can be directly probed in central exclusive production photon pairs ultra-peripheral collisions LHC proton and heavy ion collisions. consider non-standard collision modes LHC, such as argon-argon $\sqrt{s_{NN}} = 7$ TeV proton-lead 8.16$...
We study the discovery potential of massive graviton-like spin-2 particles coupled to standard model fields, produced in photon-photon collisions at Large Hadron Collider (LHC) as well electron-positron (e+e−) collisions, within an effective theory with and without universal couplings. Our focus is on a graviton G electromagnetic field, which decays via G→γγ leads resonant excess diphotons over light-by-light scattering continuum LHC, triphoton final states e+e− colliders. Based similar...
The EDELWEISS Collaboration is searching for WIMP dark matter using natural Ge cryogenic detectors. whole data set of the first phase experiment contains a fiducial exposure 4.8 kg day on 73Ge, naturally present (7.8%), high-spin isotope. sensitivity to spin-dependent WIMP-nucleon interactions evaluated model-independent framework proposed by Tovey et al. [Phys. Lett. B 488 (2000) 17]. It shown that WIMP-neutron coupling competitive when compared with results other spin-sensitive...
The proton diffractive structure function $F_2^{D(3)}$ measured in the H1 and ZEUS experiments at HERA is analyzed terms of both Regge phenomenology perturbative QCD evolution. A new method determines values intercepts ``hard'' diffraction, confirming a higher value Pomeron intercept than for soft physics. data are well described by analysis which point-like parton distributions, evolving according to DGLAP equations, assigned leading sub-leading exchanges. gluon distributions found be quite...
We show that the double diffractive electroweak vector boson production in $pp$ collisions at LHC is an ideal probe of QCD based mechanisms diffraction. Assuming resolved Pomeron model with flavor symmetric parton distributions, $W$ asymmetry rapidity equals exactly zero. In other approaches, like soft color interaction model, which gluon exchanges are responsible for diffraction, nonzero and equal to inclusive production. same way, ratio $Z$ independent models contrast predictions model.
We present a model of generalised parton distributions based on forward ansatz in the DGLAP region. discuss some aspects parametrisations, as dependence t, with factorised and non-factorised approaches, where t is square four-momentum exchanged at hadron vertex. The predictions this are then compared DVCS cross sections from H1 ZEUS, related observable, skewing factor, defined following ratio imaginary amplitudes: R≡ImA(γ∗+p→γ+p)|t=0/ImA(γ∗+p→γ∗+p)|t=0. It an interesting quantity including...
In this review, we first discuss the perspectives concerning a better determination of proton structure in terms quarks and gluons at LHC after describing results coming from HERA Tevatron. second part describe diffractive phenomena Tevatron consequences for LHC.
The probability distribution of log-returns for financial time series, sampled at high frequency, is the basis any further developments in quantitative finance. In this letter, we present experimental results based on a large set series futures. We show that t-distribution with v=3 gives nice description almost all data considered scale Delta t below 1 hour. For 8 hours, Gaussian regime reached. A particular focus has been put DAX and Euro This appears to be quite general result stays robust...
Proceedings of the 12th International Conference on Elastic and Diffractive Scattering (Blois Workshop) - Forward Physics QCD
In this note, we present a new generator for Deeply Virtual Compton Scattering processes. This is based on formalism of Generalized Partons Distributions evolved at Next Leading Order (NLO). the following give brief description and explain main features elastic reactions, as well proton dissociation.
The cross sections for the reaction $γγ\rightarrow 4\ell$ in proton--proton collisions are calculated at LHC energies. We show that purely electroweak process can be studied and constitute a background to other processes with $4\ell$ or $2\ell$ final states.