0000000000437625

AUTHOR

A. Wilms

showing 4 related works from this author

LOFT: the Large Observatory For X-ray Timing

2012

The LOFT mission concept is one of four candidates selected by ESA for the M3 launch opportunity as Medium Size missions of the Cosmic Vision programme. The launch window is currently planned for between 2022 and 2024. LOFT is designed to exploit the diagnostics of rapid X-ray flux and spectral variability that directly probe the motion of matter down to distances very close to black holes and neutron stars, as well as the physical state of ultra-dense matter. These primary science goals will be addressed by a payload composed of a Large Area Detector (LAD) and a Wide Field Monitor (WFM). The LAD is a collimated (<1 degree field of view) experiment operating in the energy range 2-50 keV,…

[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]VisionX-ray timingAstronomySPIE ProceedingsObservatoriesX-ray timing X-ray spectroscopy X-ray imaging compact objectsSilicon Drift ChambersFOS: Physical sciencesddc:500.2X-ray missionsSpace (mathematics)Astrophysics01 natural sciences7. Clean energySettore FIS/05 - Astronomia E AstrofisicaX-rays0103 physical sciencesElectronicOptical and Magnetic MaterialsInstrumentation (computer programming)Electrical and Electronic EngineeringAerospace engineeringDiagnosticsCompact objects010303 astronomy & astrophysicsInstrumentation and Methods for Astrophysics (astro-ph.IM)PhysicsSpatial resolutionsezeleSensors010308 nuclear & particles physicsbusiness.industryApplied MathematicsX-ray imagingSilicon Drift ChamberComputer Science Applications1707 Computer Vision and Pattern RecognitionCondensed Matter PhysicsCompact objects; X-ray imaging; X-ray spectroscopy; X-ray timing; Electronic Optical and Magnetic Materials; Condensed Matter Physics; Computer Science Applications1707 Computer Vision and Pattern Recognition; Applied Mathematics; Electrical and Electronic Engineering[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]X-ray spectroscopySilicon Drift Chambers; X-ray missionsInstrumentation and Methods for AstrophysicsAstrophysics - Instrumentation and Methods for Astrophysicsbusiness
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Feasibility study for the measurement of πN transition distribution amplitudes at P¯ANDA in p¯p→J/ψπ0

2017

The exclusive charmonium production process in (P) over barp annihilation with an associated pi 0 meson (p) over barp -> J/psi pi(0) is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the J/psi -> e(+) e(-) decay channel with the AntiProton ANnihilation at DArmstadt ((P) over bar ANDA) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the (P) over barp -> pi(+)pi(-)pi(0) and (p) over barp -> J/psi pi(0)pi(0) reactions are performed with PANDAROOT, the simulation and analysis software framework of the (P) over bar ANDA experiment. It is show…

Quantum chromodynamicsPhysicsParticle physicsLuminosity (scattering theory)AnnihilationMeson010308 nuclear & particles physics7. Clean energy01 natural sciencesParticle identificationNuclear physicsFactorizationAntiproton0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsBar (unit)Physical Review D
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Study of doubly strange systems using stored antiprotons

2016

Bound nuclear systems with two units of strangeness are still poorly known despite their importance for many strong interaction phenomena. Stored antiprotons beams in the GeV range represent an unparalleled factory for various hyperon-antihyperon pairs. Their outstanding large production probability in antiproton collisions will open the floodgates for a series of new studies of systems which contain two or even more units of strangeness at the PANDA experiment at FAIR. For the first time, high resolution gamma-spectroscopy of doubly strange Lambda Lambda-hypernuclei will be performed, thus complementing measurements of ground state decays of Lambda Lambda-hypernuclei at J-PARC or possible …

Particle physicsNuclear and High Energy PhysicsCOLLISIONSStrong interactionNuclear TheoryhyperatomsAntiprotons; Hyperatoms; Hypernuclei; Strangeness; Nuclear and High Energy PhysicsEXCHANGE CURRENTSAntiprotonsStrangeness01 natural sciencesPartícules (Física nuclear)NONuclear physicsSubatomär fysikHypemucleistrangenessDECUPLET BARYONSELECTRIC QUADRUPOLE-MOMENTSHyperatoms0103 physical sciencesSubatomic PhysicsHypernuclei010306 general physicsNuclear ExperimentPhysicshypernucleiNUCLEI010308 nuclear & particles physicsHyperonStrangenessTransport theoryDOUBLE-LAMBDA-HYPERNUCLEIMODELOMEGAAntiprotonPhysics::Accelerator PhysicsHeavy ionHigh Energy Physics::ExperimentantiprotonsINTERMEDIATE ENERGIESEMULSIONNuclear Physics A
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Novel digital K-edge imaging system with transition radiation from an 855-MeV electron beam

2001

A novel K-edge imaging method has been developed at the Mainz Microtron MAMI aiming at a very efficient use of the transition radiation (TR) flux generated by the external 855-MeV electron beam in a foil stack. A fan-like quasi-monochromatic hard X-ray beam is produced from the /spl plusmn/1-mrad-wide TR cone with a highly oriented pyrolytic graphite (HOPG) crystal. The absorption of the object in front of a 30 mm/spl times/10 mm pn charge-coupled device (pn-CCD) photon detector is measured at every pixel by a broad-band energy scan around the K-absorption edge. This is accomplished by a synchronous variation of the lateral crystal position and the electron beam direction which defines also…

PhysicsNuclear and High Energy Physicsbusiness.industryDetectorchemistry.chemical_elementImaging phantomXenonOpticsNuclear Energy and EngineeringTransition radiationK-edgechemistryHighly oriented pyrolytic graphiteCathode rayElectrical and Electronic EngineeringbusinessMicrotronIEEE Transactions on Nuclear Science
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