Search Results - "Ahmidouch, A."
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Precision measurement of the neutral pion lifetime
Published in Science (American Association for the Advancement of Science) (01-05-2020)“…The explicit breaking of the axial symmetry by quantum fluctuations gives rise to the so-called axial anomaly. This phenomenon is solely responsible for the…”
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New Measurement of the π0 radiative decay width
Published in Physical review letters (22-04-2011)“…High precision measurements of the differential cross sections for π0 photoproduction at forward angles for two nuclei, 12C and 208Pb, have been performed for…”
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Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton
Published in Physical review letters (09-10-2015)“…Wide-angle exclusive Compton scattering and single-pion photoproduction from the proton have been investigated via measurement of the polarization transfer…”
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Probing quark-gluon interactions with transverse polarized scattering
Published in Physical review letters (03-09-2010)“…We have extracted QCD matrix elements from our data on doubly polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element…”
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Transverse momentum dependence of semi-inclusive pion production
Published in Physics letters. B (03-07-2008)“…Cross sections for semi-inclusive electroproduction of charged pions (π±) from both proton and deuteron targets were measured for 0.2<x<0.5, 2<Q2<4 GeV2,…”
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High precision photon flux determination for photon tagging experiments
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2014)“…The Jefferson Laboratory PrimEx Collaboration has developed and implemented a method to control the tagged photon flux in photoproduction experiments at the 1%…”
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Electroproduction of the Δ ( 1232 ) Resonance at High Momentum Transfer
Published in Physical review letters (1999)Get full text
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Measurement of tensor polarization in elastic electron-deuteron scattering at large momentum transfer
Published in Physical review letters (29-05-2000)“…Tensor polarization observables ( t(20), t(21), and t(22)) have been measured in elastic electron-deuteron scattering for six values of momentum transfer…”
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Phenomenology of the deuteron electromagnetic form factors
Published in The European physical journal. A, Hadrons and nuclei (01-03-2000)“…A rigorous extraction of the deuteron charge form factors from tensor polarization data in elastic electron-deuteron scattering, at given values of the…”
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Onset of quark-hadron duality in pion electroproduction
Published in Physical review letters (12-01-2007)“…A large data set of charged-pion (pi+/-) electroproduction from both hydrogen and deuterium targets has been obtained spanning the low-energy residual-mass…”
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Measurements of electron-proton elastic cross sections for 0.4<Q{sup 2}<5.5 (GeV/c){sup 2}
Published in Physical review. C, Nuclear physics (01-07-2004)“…We report on precision measurements of the elastic cross section for electron-proton scattering performed in Hall C at Jefferson Lab. The measurements were…”
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Precise Measurement of the Deuteron Elastic Structure Function A ( Q 2 )
Published in Physical review letters (1999)“…The A(Q^2) structure function in elastic electron-deuteron scattering was measured at six momentum transfers Q^2 between 0.66 and 1.80 (GeV/c)^2 in Hall C at…”
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Future hypernuclear program at JLab Hall C
Published in Nuclear physics. A (30-05-2005)“…Encouraged by the success of the first hypernuclear spectroscopy through the ( e , e ′ K + ) reaction (JLab E89-009), a new improved experiment with a newly…”
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Calibration of a neutron polarimeter in the 0.2–1.1 GeV region
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (15-02-2006)“…We measured the analyzing power and the efficiency of a neutron polarimeter at the Saturne National Laboratory in France with central energies of the neutron…”
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Longitudinal electroproduction of charged pions from (1)H, (2)H, and (3)He
Published in Physical review letters (12-11-2001)“…Separated longitudinal and transverse cross sections for charged pion electroproduction from (1)H, (2)H, and (3)He were measured at Q(2) = 0.4 (GeV/c)(2) for…”
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Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to Q2=8.5GeV2
Published in Physical review letters (18-06-2010)“…Among the most fundamental observables of nucleon structure, electromagnetic form factors are a crucial benchmark for modern calculations describing the strong…”
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Hypernuclear spectroscopy using the ( e , e ' K + ) reaction
Published in Physical review. C, Nuclear physics (01-04-2006)“…A pioneering experiment in {lambda} hypernuclear spectroscopy, undertaken at the Thomas Jefferson National Accelerator Facility (J Lab), was recently reported…”
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Measurement of the neutron electric form factor via recoil polarimetry
Published in The European physical journal. A, Hadrons and nuclei (01-11-2003)Get full text
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Measurement of the n̄-Fe absorption cross section between 125 and 780 MeV/ c
Published in Nuclear physics. A (01-01-1997)“…The n̄-Fe absorption cross section σ abs nFe has been measured at LEAR (the Low Energy Antiproton Ring at CERN) using tagged n̄'s produced in the p̄p → n̄n…”
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High precision measurement of Compton scattering in the 5 GeV region
Published in Physics letters. B (10-10-2019)“…The cross section of atomic electron Compton scattering γ+e→γ′+e′ was measured in the 4.400–5.475 GeV photon beam energy region by the PrimEx collaboration at…”
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