A5081983518- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Gyrotron and Vacuum Electronics Research
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Laser-Plasma Interactions and Diagnostics
- Magnetic confinement fusion research
- High-Energy Particle Collisions Research
- Muon and positron interactions and applications
- Quantum Chromodynamics and Particle Interactions
- Photocathodes and Microchannel Plates
- Advanced X-ray Imaging Techniques
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Pulsed Power Technology Applications
- Advancements in Photolithography Techniques
- Plasma Diagnostics and Applications
- Nuclear Physics and Applications
- Laser Design and Applications
- Laser-induced spectroscopy and plasma
- Electron and X-Ray Spectroscopy Techniques
- Astrophysics and Cosmic Phenomena
- Atomic and Molecular Physics
Fermi National Accelerator Laboratory
2015-2024
Dubna State University
2024
Joint Institute for Nuclear Research
2023-2024
Kurchatov Institute
1991-2023
University of Chicago
2020-2021
Bauman Moscow State Technical University
2019
Muons (United States)
2018
Institute for Nuclear Research
2003-2012
Oak Ridge National Laboratory
2012
Russian Academy of Sciences
2001-2011
A new experiment is described to detect a permanent electric dipole moment of the proton with sensitivity $10^{-29}e\cdot$cm by using polarized "magic" momentum $0.7$~GeV/c protons in an all-electric storage ring. Systematic errors relevant are discussed and techniques address them presented. The measurement sensitive physics beyond Standard Model at scale 3000~TeV.
The Integrable Optics Test Accelerator (IOTA) is a storage ring for advanced beam physics research currently being built and commissioned at Fermilab. It will operate with protons electrons using injectors momenta of 70 150 MeV/c, respectively. program includes the study nonlinear focusing integrable optical lattices based on special magnets electron lenses, dynamics space-charge effects their compensation, stochastic cooling, several other experiments. In this article, we present design...
We describe the status of our effort to realize a first neutrino factory and progress made in understanding problems associated with collection cooling muons towards that end. summarize physics can be done factories as well intense cold beams muons. The potential muon colliders is reviewed, both Higgs Factories compact high energy lepton colliders. timescale research development reviewed latest designs channels including promise ring coolers achieving longitudinal transverse simultaneously....
Static electric dipole moments of nondegenerate systems probe mass scales for physics beyond the Standard Model well those reached directly at high energy colliders. Discrimination between different models, however, requires complementary searches in atomic-molecular-and-optical, nuclear and particle physics. In this report, we discuss current status prospects near future a compelling suite such experiments, along with developments needed encompassing theoretical framework.
A concise demonstrative summary of the Symmetric Hybrid ring design for storage proton electric dipole moment experiment is presented. Critical issues such as lattice design, background electrical fields,geometrical phase, general relativity, spin coherence time and polarimeter systematics are Overall, we find that with currently proposed iteration, systematic error sources reduced by orders magnitude alignment requirements within available technology.
The Tevatron in Collider Run II (2001--present) is operating with 6 times more bunches, many higher beam intensities and luminosities than I (1992--1995). Electromagnetic long-range head-on interactions of high intensity proton antiproton beams have been significant sources loss lifetime limitations. We present observations the beam-beam phenomena results relevant studies. analyze data various methods employed operations, predict performance for planned luminosity upgrades, discuss ways to...
We propose the construction of, and describe in detail, a compact Muon Collider s-channel Higgs Factory.
Presently, there are two most frequently used parameterezations of linear x−y coupled motion in the accelerator physics. They Edwards-Teng and Mais-Ripken parameterizations. The article is devoted to an analysis close relationship between representations, thus adding a clarity their physical meaning. It also discusses eigen-vectors, beta-functions, second order moments bilinear form representing particle ellipsoid 4D phase space. Then, it consideres further development parameteresation where...
We report on an experiment in which a negative hydrogen ion beam the Spallation Neutron Source (SNS) linear accelerator was replaced with of protons similar size and dynamics. Fractional loss superconducting part SNS measured to be at least $2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ for ${\mathrm{H}}^{\ensuremath{-}}$ beam, it order magnitude lower protons. Also has stronger dependence intensity than proton beams. These measurements verify recent theoretical explanation...
Transverse beam stability is strongly affected by the space charge. Usually it analyzed with rigid-beam model. However, this model only valid when a bare (not charge) tune spread small compared to charge shift. This condition specifies relatively area of parameters which, however, most interesting for practical applications. The Landau damping rate and Schottky spectra are computed assuming that validity satisfied. results applied round Gaussian beam. thresholds described simple fits cases...
Plasma wakefield acceleration is one of the main technologies being developed for future high-energy colliders. Potentially, it can create a cost-effective path to highest possible energies ${e}^{+}{e}^{\ensuremath{-}}$ or $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ colliders and produce profound effect on developments physics. Acceleration in blowout regime, where all plasma electrons are swept away from axis, presently considered be primary choice beam acceleration. In this...
A beam loss in the superconducting part of SNS linac has been observed during its commissioning and operation. Although does not prevent high power operation, it results an almost uniform irradiation components increased radiation levels tunnel. Multi-particle tracking could neither account for magnitude nor dependence on machine parameters. It was recently found that is consistent with intrabeam particle collisions resulting stripping H- ions. The paper describes experimental observations...
A multi-MW proton facility, Project X has been proposed and is currently under development at Fermilab. As part of this program, we are constructing a prototype the front end linac The construction successful operations facility will validate concept for end, thereby minimizing primary technical risk element within Project. Injector Experiment (PXIE) can be constructed over period FY12-16 include an H- ion source, CW 2.1-MeV RFQ two SC cryomodules providing up to 30 MeV energy gain average...
Generally, turn-to-turn power fluctuations of incoherent spontaneous synchrotron radiation in a storage ring depend on the 6D phase-space distribution electron bunch. In some cases, if only one parameter is unknown, this can be determined from measured magnitude these fluctuations. Letter, we report an absolute measurement (no free parameters or calibration) small vertical emittance (5–15 nm rms) flat beam by method, under conditions, when it unresolvable conventional light size...
The Fermilab accelerator complex delivers intense high-energy proton beams to a variety of fixed-target scientific programs, including flagship long-baseline neutrino program. With the advent Deep Underground Neutrino Experiment (DUNE) and Long Baseline Facility (LBNF) program there is strong motivation for 2.4 MW beam power upgrade facility. We show facility can achieve with new rapid-cycling synchrotron (RCS) replace Booster we provide comprehensive technical analysis RCS-based design....
In a storage ring, turn-to-turn fluctuations in the intensity of spontaneous synchrotron radiation occur due to two mechanisms. The first mechanism is quantum uncertainty number emitted photons. second variations relative positions classical pointlike electrons bunch. We present unified description both effects framework optics. derive an equation for arbitrary degree coherence, which generalizes previously reported results temporally incoherent radiation. compare predictions our calculation...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation V. A. Lebedev; Emittance growth due to noise its suppression with the feedback system in large hadron colliders. AIP Conf. Proc. 1 February 1995; 326 (1): 396–423. https://doi.org/10.1063/1.47298 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex...
The radiative decay K->mu nu gamma has been studied at ISTRA+ setup in a new kinematical region. About 22K events of K^- -> mu^- nu_mu have observed. sign and value Fv-Fa measured for the first time. result is Fv-Fa=0.21(4)(4).