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Showing 1 to 20 of 61 for “"Jefferson Lab"”.
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Deeply Virtual Compton Scattering at Hall A, Jefferson Lab
… conducted in the Experimental Hall-A of Thomas Jefferson National Accelerator Facility (JLab). This thesis presents the extraction of DVCS cross section in 9 total kinematic points from the 3rd generation experiment (DVCS3) conducted after the 12 GeV upgrade of the Continuous Electron Beam …
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Crab Cavity Requirements for the Jefferson Lab Electron-Ion Collider
… gluons inside nuclei. A conceptual design for a Jefferson Lab Electron-Ion Collider (JLEIC) is being developed. It is based on the CEBAF 12 GeV machine as a full energy electron beam injector. Two crucial requirements of JLEIC are high luminosity in the 10<sup>34</sup> …
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Inclusive and exclusive electron scattering data analysis from Jefferson Lab experiment E12-14-012
… such experiments. The E12-14-012 experiment at Jefferson Lab seeks to help remedy this via electron scattering measurements on argon and titanium targets. The experiment collected both inclusive (e,e') and exclusive (e,e'p) data at a wide range of kinematics with the intent to measure the …
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Measuring the Neutron Spin Asymmetry A1n in the Valence Quark Region in Hall C at Jefferson Lab
… < x < 0.75 and 6 < Q^2 < 10 GeV^2 in Hall C at Jefferson Lab using a 10.4 GeV longitudinally polarized electron beam, upgraded polarized He-3 target, and the High Momentum Spectrometer (HMS) and Super High Momentum Spectrometer (SHMS). E12-06-110 provides the first precision data in the valence …
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Measurement of Pion-Pion Final State Interactions in η → π +π −γ with CLAS at Jefferson Lab
… Spectrometer located in Hall B at the Thomas Jefferson National Accelerator Facility in 2004. The data was collected using a tagged photon beam with energy range of 1.5-3.5 GeV incident on a liquid Hydrogen target. Our results are in agreement with the latest experimental measurement and …
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Triple-GEM tracker and HCAL-J: two detectors for the study of Nucleon Form Factors at Jefferson Lab.
In the experimental Hall A of the Thomas Jefferson National Laboratory (JLab, USA/VA) is underway the integration and installation of the different equipments which will constitute the experimental setup of the new SBS (Super BigBite Spectrometer) physics program, largely devoted to the …
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Search for pentaquark partners [Theta]⁺⁺, [Sigma]⁰ and N⁰ in H (e,e'K [pi])) X reactions at Jefferson Lab Hall A
… narrow widths to be observed as well. The Jefferson Laboratory experiment E04-012 focused on the search for EO and NO partner states in the missing mass spectra of the H(e,e'K+)X and H(e,e'ir+)X channels. In addition, if the 8+ has non-zero isospin then a hypothetical isospin partner, O++, …
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Measurement of the pion exclusive electro-production cross-section in the E12-19-006 experiment in Hall-C at Jefferson Lab
… confines of experimental Hall C at the Thomas Jefferson National Accel- erator Facility, USA, for such studies. The primary aim of the experiment is to first enhance our comprehension of the pion electro-production cross-section and its form factor at Q2 = 0.38 and 0.42 GeV2. This is the first …
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Photoproduction of K<sup>*+</sup>¿¿/¿¿<sup>0</sup> and K<sup>0</sup>¿¿<sup>+</sup> from the Proton Using CLAS at Jefferson Lab
… CLAS g11a data collected at experimental Hall-B, Jefferson Lab. These measurements are the world’s first high statistics measurements of K<sup>*+</sup>¿¿ and K<sup>*+</sup>¿¿<sup>0</sup> photoproduction. The cross section covers the incident photon energy range from 1.75 GeV to 3.85 GeV for …
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Some Aspects of Deeply Virtual Compton Scattering
… scattering for the kinematics of CEBAF at Jefferson Lab.</p>
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The ²H(<i>e, e'p</i>)<i>n</i> Reaction at High Four-Momentum Transfer
… factor, and control of systematics for Hall A at Jefferson Lab made Jefferson Lab the only facility in the world where these systematic studies of the deuteron can be undertaken. This is especially true when we want to understand the short range structure of the deuteron where high energies and …
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Proton form factors in large NcQCD
… recent polarization transfer measurements at Jefferson Lab. The electric and magnetic radii are determined using this current world data.
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Measurement of the Deeply Virtual Neutral Pion Electroproduction Cross Section off the Proton at 10.6 GeV using the CLAS12 Detector
… a proton target from the CLAS12 experiment in Jefferson Lab Hall B. This measurement is important as exclusive meson production has unique access to the chiral odd Generalized Parton Distributions, and is also a background for other exclusive processes such as Deeply Virtual Compton Scattering, …
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Beam spin asymmetry measurements in deeply virtual Compton scattering
… Compton Scattering (DVCS) using CLAS detector at Jefferson Lab and longitudinally polarized electron beam with 4.8 GeV energy. This asymmetry is directly proportional to the imaginary part of the scattering amplitude, which relates it to the Generalized Parton distribution functions. Reaction ep …
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Magnetic Field Shielding For the Forward Time of Flight Upgrade At Jefferson National Lab
… for the Forward Time of Flight detector during Jefferson Lab's 12GeV upgrade. The counters, consisting of photomultiplier tubes attached to the ends of scintillation bars of varying lengths, record the time of flight for particles inside the Continuous Electron Beam Accelerator Facility (CEBAF) …
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Kinematic fitting of detached vertices
The eg3 experiment at the Jefferson Lab CLAS detector aims to determine the existence of the &Xgr;5 pentaquarks and investigate the excited &Xgr; states. Specifically, the exotic X--5 pentaquark will be sought by first reconstructing the X- particle through its weak decays, X- → pi- and &Lgr; …
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Compton polarimeter for Qweak Experiment at Jefferson Laboratory
The Qweak experiment at Jefferson Lab aims to make the first precision measurement of the proton's weak charge, QP = 1 - 4 sin 2 9w at Q2 = 0.026GeV 2 . Given the precision goals in the Qweak experiment, the electron beam polarization must be known to an absolute uncertainty of 1%. A new Compton …
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Measurement of the (e,e') cross section for 12C, 48Ti, 27Al and 40Ar
… experiment E12-14- 012 in Hall A at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). In the E12-14-012 experiment, we collected data for the inclusive (e,e′) and exclusive (e,e′p) processes for a variety of targets (argon, titanium, aluminum, carbon) at a wide range of …
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