A5029629184- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Superconducting Materials and Applications
- Laser-Plasma Interactions and Diagnostics
- Dark Matter and Cosmic Phenomena
- Magnetic confinement fusion research
- Radiation Therapy and Dosimetry
- Neutrino Physics Research
- Graphite, nuclear technology, radiation studies
- Radiation Detection and Scintillator Technologies
- Gyrotron and Vacuum Electronics Research
- Atomic and Molecular Physics
- Radiation Effects in Electronics
- Pulsed Power Technology Applications
- Fusion materials and technologies
- Nuclear Physics and Applications
- High-Energy Particle Collisions Research
- Laser-Matter Interactions and Applications
- Advanced Radiotherapy Techniques
- Acoustic Wave Resonator Technologies
- Calibration and Measurement Techniques
- Crystallography and Radiation Phenomena
- Modular Robots and Swarm Intelligence
European Organization for Nuclear Research
2012-2024
High energy particle accelerators have been crucial in providing a deeper understanding of fundamental particles and the forces that govern their interactions. In order to increase or reduce size accelerator, new acceleration schemes need be developed. Plasma wakefield acceleration, which electrons plasma are excited, leading strong electric fields, is one such promising novel technique. Pioneering experiments shown an intense laser pulse electron bunch traversing plasma, drives fields 10s...
A bstract Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These can, among other things, explain origin neutrino masses, generate observed matter-antimatter asymmetry in Universe and provide a dark matter candidate. The SHiP experiment will be able to search for HNLs produced decays heavy mesons travelling distances ranging between $$ \mathcal{O} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>O</mml:mi>...
The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) aims at studying plasma wakefield generation and electron acceleration driven by proton bunches. It is a proof-of-principle R&D experiment CERN the world׳s first experiment. AWAKE will be installed in former CNGS facility uses 400 GeV/c beam bunches from SPS. experiments focus on self-modulation instability of long (rms ~12 cm) bunch plasma. These are planned for end 2016. Later, 2017/2018, low energy (~15 MeV)...
Electron cloud buildup is a major limitation for high-energy particle accelerators such as the CERN Super Proton Synchrotron (SPS). Amorphous carbon thin films with low initial secondary electron yield ($\mathrm{SEY}\ensuremath{\cong}1.0$) have been applied mitigation material in SPS vacuum chambers. This paper summarizes experimental setups monitoring, coating procedures, and recent measurements performed amorphous coated chambers SPS. The measured by dedicated monitors completely...
We give direct experimental evidence for the observation of full transverse self-modulation a long, relativistic proton bunch propagating through dense plasma. The exits plasma with periodic density modulation resulting from radial wakefield effects. show that is seeded by ionization front created using an intense laser pulse copropagating bunch. extends over length following seed point. By varying one order magnitude, we frequency scales expected dependence on density, i.e., it equal to...
The seeded self-modulation of a relativistic, charged particle bunch in plasma is shown to grow both along the and plasma, resulting transverse wakefield amplitudes that far exceed initial seed values.
This paper presents a fast approach to simulating muons produced in interactions of the SPS proton beams with target SHiP experiment. The experiment will be able search for new long-lived particles 400 GeV/c beam dump and which travel distances between fifty metres tens kilometers. detector needs operate under ultra-low background conditions requires large simulated samples muon induced processes. Through use Generative Adversarial Networks it is possible emulate simulation interaction...
The Search for Hidden Particles (SHiP) Collaboration has shown that the CERN SPS accelerator with its 400 GeV/c proton beam offers a unique opportunity to explore Sector [1–3]. proposed experiment is an intensity frontier which capable of searching hidden particles through both visible decays and scattering signatures from recoil electrons or nuclei. high-intensity experimental facility developed by SHiP based on number key features developments provide possibility probing large part...
Abstract The Search for Hidden Particles (SHiP) Collaboration has proposed a general-purpose experimental facility operating in beam-dump mode at the CERN SPS accelerator to search light, feebly interacting particles. In baseline configuration, SHiP experiment incorporates two complementary detectors. upstream detector is designed recoil signatures of light dark matter (LDM) scattering and neutrino physics, particular with tau neutrinos. It consists spectrometer magnet housing layered system...
AWAKE is a proton-driven plasma wakefield acceleration experiment. % We show that the experimental setup briefly described here ready for systematic study of seeded self-modulation 400\,GeV proton bunch in 10\,m-long rubidium with density adjustable from 1 to 10$\times10^{14}$\,cm$^{-3}$. short laser pulse used ionization vapor propagates all way along column, suggesting full vapor. occurs bunch, at time and follows affects bunch.
Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass of dark photon m$_{\gamma^{\mathrm{D}}}$ and its mixing parameter photon, $\varepsilon$. sensitivity SHiP detector reviewed for in range between 0.002 10 GeV. Different production mechanisms simulated, decaying to pairs visible fermions, including both leptons quarks. Exclusion contours presented compared those...
A bstract Dark matter is a well-established theoretical addition to the Standard Model supported by many observations in modern astrophysics and cosmology. In this context, existence of weakly interacting massive particles represents an appealing solution observed thermal relic Universe. Indeed, large experimental campaign ongoing for detection such sub-GeV mass range. Adopting benchmark scenario light dark produced decay photon, with α D = 0 . 1 m ′ 3 χ , we study potential SHiP experiment...
The SHiP-charm project was proposed to measure the associated charm production induced by 400 GeV/c protons in a thick target, including contribution from cascade production. An optimisation run performed July 2018 at CERN SPS using hybrid setup. high resolution of nuclear emulsions acting as vertex detector complemented electronic detectors for kinematic measurements and muon identification. Here we present first results on analysis exposed run, which prove capability reconstructing proton...
The AWAKE collaboration prepares a proton driven plasma wakefield acceleration experiment using the SPS beam at CERN. A long bunch extracted from interacts with high power laser and 10 m rubidium vapor cell to create strong wakefields allowing sustained electron acceleration. probe these is created by an accelerator consisting of rf-gun booster structure. This source should provide beams intensities between 0.1 1 nC, lengths 0.3 3 ps emittance order 2 mm mrad. structure accelerate electrons...
Abstract During 2022, a dedicated study was undertaken at CERN, together with the FCC Feasibility Study collaborators, to propose robust configuration for FCC-ee arc half-cell. The proposed layout considers integration aspects of elements in cross section, both booster and collider, as well related powering, cooling ventilation, supporting alignment, optics, instrumentation, handling installation. interfaces between straight sections have also been analysed. This paper summarizes main...
Abstract In 2022, the FCC Feasibility Study management mandated a working group to analyse best configuration of FCC-ee tunnel in arc regions, view construction mock-up half-cell. One main and most challenging goals study, named Arc Half-Cell Mock-up Project, was perform preliminary investigation on principles supporting Short-Straight Sections dipoles half-cells, both for booster collider machines. This is an important input needed choice relative placement with respect collider. The...
The AWAKE project at CERN is planned to study proton driven plasma wakefield acceleration. beam from the SPS will be used in order drive wakefields a 10 m long Rubidium cell. In first phase of this experiment, scheduled 2016, self-modulation studied detail, while second an external electron injected into probe acceleration process. installation former CNGS experimental area and required optics flexibility define tight boundary conditions fulfilled by line design. transport low energy (10-20...
Abstract The SHiP experiment is proposed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at CERN SPS. About $$10^{11}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mn>10</mml:mn><mml:mn>11</mml:mn></mml:msup></mml:math> muons per spill will be dump. To design such that muon-induced background minimized, precise knowledge of muon spectrum required. validate flux generated by our Pythia and...