A5065119141- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Neutrino Physics Research
- Nuclear physics research studies
- Cosmology and Gravitation Theories
- Muon and positron interactions and applications
- Distributed and Parallel Computing Systems
- Atomic and Molecular Physics
- Superconducting Materials and Applications
- Advanced NMR Techniques and Applications
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Magnetic Properties and Applications
- Advanced Data Storage Technologies
- Astrophysics and Cosmic Phenomena
- Crystallography and Radiation Phenomena
- Quantum, superfluid, helium dynamics
European Organization for Nuclear Research
2023-2025
University of Manchester
2023-2024
Institute of Science and Technology
2023-2024
Institute for High Energy Physics
2023-2024
University of Geneva
2023-2024
Atlas Scientific (United States)
2024
A. Alikhanyan National Laboratory
2024
Institute of High Energy Physics
2024
The University of Adelaide
2019-2023
Nanjing University
2023
The differential and total cross sections for kaon pair production in the pp->ppK+K- reaction have been measured at three beam energies of 2.65, 2.70, 2.83 GeV using ANKE magnetic spectrometer COSY-Juelich accelerator. These near-threshold data are separated into pairs arising from decay phi-meson remainder. For non-phi selection, ratio terms K-p K+p invariant masses is strongly peaked towards low masses. This effect can be described quantitatively by a simple ansatz final state...
The Spin Physics Detector collaboration proposes to install a universal detector in the second interaction point of NICA collider under construction (JINR, Dubna) study spin structure proton and deuteron other spin-related phenomena using unique possibility operate with polarized beams at collision energy up 27 GeV luminosity $10^{32}$ cm$^{-2}$ s$^{-1}$. As main goal, experiment aims provide access gluon TMD PDFs deuteron, as well transversity distribution tensor via measurement specific...
The deuteron tensor analysing power T20 of the d→p→He3η reaction has been measured at COSY-ANKE facility in small steps excess energy Q up to Q=11 MeV. Despite square production amplitude varying by over a factor five through this range, shows little dependence. This is evidence that final state interaction causing variation not influenced spin configuration entrance channel. weak angular dependence observed for provides useful insight into structure near threshold.
The quasifree $pn\ensuremath{\rightarrow}d\ensuremath{\phi}$ reaction has been studied at the Cooler Synchrotron COSY---J\"ulich, using internal proton beam incident on a deuterium cluster-jet target and detecting fast deuteron in coincidence with ${K}^{+}{K}^{\ensuremath{-}}$ decay of $\ensuremath{\phi}$ meson. energy dependence total differential cross sections are extracted for excess energies up to 80 MeV by determining Fermi momentum neutron an event-by-event basis. Though these...
Differential and total cross sections for the pp -> ppK+K- reaction have been measured at a proton beam energy of 2.83 GeV using COSY-ANKE magnetic spectrometer. Detailed model descriptions fitted to variety one-dimensional distributions permit separation phi section from that non-phi production. The differential spectra show higher partial waves represent majority an excess 76 MeV, whose dependence would then seem require some s-wave phi-p enhancement near threshold. data can be described...
The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV deuteron-proton 270 MeV. After acceleration to 1170 inside the COSY ring, deuterons were checked by studying variety nuclear reactions cluster target ANKE magnet spectrometer placed an internal position storage ring. All these measurements consistent with absence depolarization during provide number secondary standards that can be used in subsequent experiments facility.
Measurements of the $\mathit{pd}\ensuremath{\rightarrow}{p}_{\text{sp}}{\mathit{dK}}^{+}{K}^{\ensuremath{-}}$ reaction, where ${p}_{\text{sp}}$ is a spectator proton, have been undertaken at Cooler Synchrotron COSY-J\"ulich by detecting fast deuteron in coincidence with ${K}^{+}{K}^{\ensuremath{-}}$ pair ANKE facility. Although proton beam energy was fixed, moving target neutron allowed values nonresonant quasifree $\mathit{pn}\ensuremath{\rightarrow}{\mathit{dK}}^{+}{K}^{\ensuremath{-}}$...
The production of the Sigma+ hyperon through pp->K+nSigma+ reaction has been investigated at four energies close to threshold, 1.826, 1.920, 1.958, and 2.020 GeV. At low energies, correlated K+pi+ pairs can only originate from so that their measurement allows total cross section for be determined. results obtained are completely consistent with values extracted study K+-proton correlation spectra in same experiment. These spectra, as well inclusive K+ momentum distributions, also provide...
The PAX Collaboration has successfully performed a spin-filtering experiment with protons at the COSY-ring. measurement allowed determination of spin-dependent polarizing cross section, that compares well theoretical prediction from nucleon–nucleon potential. test confirms can be adopted as method to polarize stored beam and present interpretation mechanism in terms proton–proton interaction is correct. outcome utmost importance view possible application antiprotons.
The unpolarised differential cross section and the two deuteron tensor analysing powers A xx yy of $$\vec dp \to \{ pp\} _s n$$ charge-exchange reaction have been measured with ANKE spectrometer at COSY storage ring. Using beams energies 1.2, 1.6, 1.8, 2.27GeV, data were obtained for small momentum transfers to a {pp} s system low excitation energy. results three lower are consistent impulse approximation predictions based upon current knowledge neutron-proton amplitudes. However, where...
The proton analysing power in $\vec{p}p$ elastic scattering has been measured at small angles COSY-ANKE 796 MeV and five other beam energies between 1.6 2.4 GeV using a polarised beam. asymmetries obtained by detecting the fast ANKE forward detector or slow recoil silicon tracking telescope are completely consistent. Although results agree well with many published data MeV, also most recent partial wave solution this energy, higher lie above predictions of angles. An updated phase shift...
A value for the mass of eta meson has been determined at COSY-ANKE facility through measurement a set deuteron laboratory beam momenta and associated 3He center-of-mass in d+p -> 3He+X reaction. The was then identified by missing-mass peak production threshold determined. individual were fixed with relative precision 3 x 10^-5 values around GeV/c using polarized inducing an artificial depolarizing spin resonance, which occurs well-defined frequency. final-state two-body 3He+eta reaction...
A low-energy spin-physics program is being developed at the COSY storage ring. To support planned experimental activities, several tools for polarized beams and targets have been developed. The paper presents physics case readiness of setup its realization.
${K}^{+}$-meson production in $\mathrm{pA}$ ( $A\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}\mathrm{C},\mathrm{Cu},\mathrm{Au}$) collisions has been studied using the ANKE spectrometer at an internal target position of COSY-J\"ulich accelerator. The complete momentum spectrum kaons emitted forward angles, $\ensuremath{\vartheta}\ensuremath{\le}12\ifmmode^\circ\else\textdegree\fi{}$, measured for a beam energy ${T}_{p}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.0\mathrm{GeV}$,...
We propose to use an internal polarized hydrogen storage cell gas target in the AD ring determine for first time two total spin-dependent pbar-p cross sections sigma_1 and sigma_2 at antiproton beam energies range from 50 450 MeV. The data obtained are of interest by themselves general theory interactions since they will provide a experimental constraint spin-spin dependence nucleon-antinucleon potential energy interest. In addition, measurements polarization buildup stored antiprotons...
The deuteron breakup reaction $\mathit{pd}\ensuremath{\rightarrow}{\mathit{pp}}{}_{s}n$, where ${\mathit{pp}}{}_{s}$ is a fast proton pair emitted in forward direction with small excitation energy ${E}_{\mathit{pp}}<3$ MeV, has been studied at beam energies of $0.5--2.0$ GeV using the ANKE spectrometer COSY-J\"ulich. differential c.m. cross sections are measured complete kinematics and provide angular distributions neutron emission angle range...