Search Results - "Schaerf, C."
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Limits on light-speed anisotropies from Compton scattering of high-energy electrons
Published in Physical review letters (18-06-2010)“…The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the…”
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2
First measurement of the $\Sigma$ beam asymmetry in $\eta^{\prime}$ photoproduction off the proton near threshold
Published in The European physical journal. A, Hadrons and nuclei (01-07-2015)“…The $\Sigma$ beam asymmetry in $\eta^{\prime}$ photoproduction off the proton was measured at the GrAAL polarized photon beam with incoming photon energies of…”
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3
Measurements of H-->D-->(gamma-->,pi) and implications for the convergence of the Gerasimov-Drell-Hern integral
Published in Physical review letters (01-05-2009)“…We report new measurements of inclusive pi production from frozen-spin HD for polarized photon beams covering the Delta(1232) resonance. These provide data…”
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Measurement of πphotoproduction on the proton from 550 to 1500 MeV at GRAAL
Published in The European physical journal. A, Hadrons and nuclei (01-12-2005)“…Neutral pion photoproduction has been measured from 550 to 1500 MeV with the GRAAL facility, located at the ESRF in Grenoble. Differential cross-section and…”
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5
Differential cross section measurement of η photoproduction on the proton from threshold to 1100 MeV
Published in Physics letters. B (07-03-2002)“…The differential cross section for the reaction p(γ,ηp) has been measured from threshold to 1100 MeV photon laboratory energy. For the first time, the region…”
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Double pi(0) Photoproduction on the Proton at GRAAL
Published in Physical review letters (06-06-2003)“…The double pi(0) photoproduction off the proton has been measured in the beam energy range of 0.65-1.5 GeV. The total and differential cross sections and the…”
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New Measurement of Σ Beam Asymmetry for η Meson Photoproduction on the Proton
Published in Physical review letters (1998)“…We present new Σ beam asymmetry data for η meson photoproduction on the proton, using a novel tagged, laser backscattered, linearly polarized photon beam up to…”
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Commissioning and initial experimental program of the BGO-OD experiment at ELSA
Published in EPJ Web of Conferences (01-01-2016)“…BGO-OD is a new meson photoproduction experiment at the ELSA facility of Bonn University. It aims at the investigation of non strange and strange baryon…”
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Journal Article Conference Proceeding -
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Analysis of the η′ photoproduction off the proton and preliminary beam asymmetry results at the GRAAL experiment
Published in EPJ Web of conferences (01-01-2014)“…Differential and total cross section measurements on η′ photoproduction were published by the CLAS Collaboration (M. Dugger et al., Phys.Rev.Lett.96, 062001…”
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Beam asymmetry Σ in η′ photoproduction off the proton at the GRAAL experiment
Published in EPJ Web of conferences (01-01-2014)“…The only recent η′ photoproduction data off proton available in literature are the differential and total cross sections published by the CLAS and CB-ELSA-TAPS…”
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Precise measurement of Σ beam asymmetry for positive pion photoproduction on the proton from 800 to 1500 MeV
Published in Physics letters. B (19-09-2002)“…The Σ beam asymmetry for positive pion photoproduction on the proton has been measured over an angular range of 40–170° at photon energies from 0.8 to 1.5 GeV…”
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A large acceptance lead-scintillator time-of-flight wall for neutral and charged particles
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-07-2002)“…A large acceptance lead-scintillator time-of-flight (TOF) wall has been developed to detect photons, neutrons, and charged particles produced in…”
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Static and dynamic polarization of HD
Published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (21-06-2004)“…The static polarization of HD samples has been achieved using “brute force”, for HD samples purified by double distillation. Proton polarization in excess of…”
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Journal Article Conference Proceeding -
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Precise measurement of Σ beam asymmetry for positive pion photoproduction on the proton from 550 to 1100 MeV
Published in Physics letters. B (02-03-2000)“…Σ beam asymmetries for π + photoproduction on the proton have been measured in the energy range 550–1100 MeV over a wide angular range. The statistical and…”
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Charged particle detection at GRAAL
Published in Radiation effects and defects in solids (01-05-2009)“…Experimental results on proton and charged pion detection obtained from a study of the γ+n→p+π − reaction are reported in detail. Data have been collected…”
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The GRAAL high resolution BGO calorimeter and its energy calibration and monitoring system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-02-1998)“…We describe the electromagnetic calorimeter built for the GRAAL apparatus at the ESRF. Its monitoring system is presented in detail. Results from tests and the…”
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Photon beams for radiosurgery produced by laser Compton backscattering from relativistic electrons
Published in Physics in medicine & biology (01-09-1996)“…The frontal collisions of a laser beam with relativistic electrons result in Compton-backscattered photons. The energy of these photons is dependent on the…”
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Polarized Compton scattering from the proton
Published in Physical review letters (12-02-1996)Get full text
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19
A polarized HD target factory in Europe
Published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (21-05-2001)“…Highly polarized hydrogen molecules in the solid phase are of primary interest as “polarized targets” for Nuclear Physics experiments and polarized fuel for…”
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Journal Article Conference Proceeding -
20
Meson photoproduction at GRAAL and baryon resonances
Published in Nuclear Physics A (25-02-2002)Get full text
Journal Article Conference Proceeding