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Showing 1 to 20 of 30 for “"Polarized electron beam"”.

  1. Analysis of scattered protons in deuteron electrodisintegration with a polarized electron beam and an internal polarized target

    Maschinot, Aaron J. (Aaron Joseph)Massachusetts Institute of Technology2005

    … In particular, the tensor asymmetry, Ad, and beam-vector asymmetry, Al, from deuteron electrodisintegration, ... , are sensitive to the existence of a tensor component in the NN interaction. The Bates Large Acceptance Spectrometer Toroid (BLAST) provides a unique opportunity to measure …

    mit Repository record

  2. Precision measurement of the proton electric to magnetic form factor ratio with BLAST

    Crawford, Christopher BlairMassachusetts Institute of Technology2005

    … Accelerator Facility. This experiment used a polarized electron beam, a pure hydrogen internal polarized target, and the symmetric Bates Large Acceptance Spectrometer Toroid (BLAST) detector. By measuring the spin-dependent elastic ... asymmetry in both sectors simultaneously, we could extract …

    mit Repository record

  3. Proton form factor ratio measurement with BLAST

    Sindile, Adrian Tiberiu

    … elastic scattering using a longitudinally polarized electron beam with 0.85 GeV energy, a polarized internal hydrogen gas target and the BLAST detector at the MIT Bates Lab. Beam-target spin asymmetries are measured in several bins of Q2 for both left and right sector of BLAST, the …

    unh-thes Repository record

  4. A measurement of the neutron magnetic form factor Gn̳M̳ form quasi-elastic ²[right arrow]H ([right arrow]e, e') at low Q²

    Meitanis, Nikolas (Nikolas C.)Massachusetts Institute of Technology2006

    … deuteron for the first time. The longitudinally polarized electron beam of the MIT-Bates Linear Accelerator was used in conjunction with an isotopically pure, polarized deuterium internal gas target. The Bates Large Acceptance Spectrometer Toroid (BLAST) was used for the measurement. The form …

    mit Repository record

  5. Vector polarization observables of the deuteron and a new measurement of the magnetic dipole form factor G(M)

    Karpius, Peter Joseph

    … of the vector analyzing power Te11 in elastic electron-deuteron scattering has been performed at the MIT-Bates Linear Accelerator Center using a polarized electron beam, an internal polarized atomic deuterium target, and the symmetric BLAST (Bates Large Acceptance Spectrometer Toroid) detector …

    unh-thes Repository record

  6. A survey of beam asymmetries in semi-exclusive electron scattering on helium-4 and carbon-12

    Protopopescu, Dan

    <p>A study of the polarized electron beam asymmetry in semi-exclusive ( e, e'p) reactions on 4He and 12C over a large kinematic range has been performed. The beam asymmetry A'LT is related to the imaginary part of the longitudinal-transverse interference and therefore it vanishes in reactions …

    unh-thes Repository record

  7. Beam spin asymmetry measurements in deeply virtual Compton scattering

    Gavalian, Gagik

    <p>Beam Spin Asymmetry (BSA) is studied in the Deeply Virtual 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 …

    unh-thes Repository record

  8. Spinabhängige Asymmetriefunktionen in der elastischen und inelastischen Elektron-Cäsium-Streuung bei mittleren Energien

    Roth, BernhardUniversität Bielefeld

    … effects in elastic and inelastic (6P) electron scattering from Cs atoms has provided a challenge, experimentally as well as theoretically, for many years. In a crossed-beam arrangement a polarized electron beam from a strained GaAs crystal is intersected with a polarized Cs atomic beam …

    bielefeld Repository record

  9. Polarization, Motion, and Fragmentation: Exploring the Role of Quarks in the Nucleon Through Semi-Inclusive Longitudinal Spin Asymmetries at HERMES

    Rubin, Joshua GeorgeUniversity of Illinois at Urbana-Champaign2015

    … analysis of deep inelastic scattering data, with polarized electron beam and polarized hydrogen and deuterium gas targets, taken by the HERMES collaboration at the DESY laboratory in Hamburg, Germany. Double-spin Born asymmetries are presented. Semi-inclusive (hadron-identified) asymmetries are …

    uiuc Repository record

  10. The neutron electric form factor to Q² = 1.45 (GeV/c)²

    Plaster, Bradley R. (Bradley Robert), 1976-Massachusetts Institute of Technology2004

    … however, with the advent of high duty-factor polarized electron beam facilities, experiments employing polarization degrees of freedom have finally yielded the first precise measurements of this fundamental quantity.

    mit Repository record

  11. Search for pre-existing Delta states at BLAST from ²H(e,e'[Delta]⁺⁺

    Greene Chana M. (Chana Michelle)Massachusetts Institute of Technology2006

    … a comprehensive study of low-Q2 spin-dependent electron scattering from deuterium has been carried out using the Bates Large Acceptance Spectrometer Toroid (BLAST). This experiment has employed an 850 MeV polarized electron beam from the MIT-Bates linear accelerator incident on an internal …

    mit Repository record

  12. Single and Double Spin Asymmetries for Pion Electro-Production From the Deuteron in the Resonance Region

    Careccia, Sharon L.2019

    … off the deuteron using a longitudinally polarized electron beam and a polarized ND<sub>3</sub> target. The electron beam was polarized using a strained GaAs cathode and the target was polarized using Dynamic Nuclear Polarization. The data were collected at beam energies of 1.6, 1.7, 2.5 …

    odu Repository record

  13. High precision measurement of the proton elastic form factor ratio at low Q²

    Zhan, XiaohuiMassachusetts Institute of Technology2010

    … Accelerator Facility in Virginia, USA. A 1.2 GeV polarized electron beam was scattered off a cryogenic hydrogen target. The recoil proton was detected in the left HRS in coincidence with the elastically scattered electrons tagged by the BigBite spectrometer. The proton polarization was measured by …

    mit Repository record

  14. DIRECT DETERMINATION OF THE WEAK CHARGE OF THE PROTON VIA PARITY-VIOLATING ELECTRON SCATTERING

    Zang, Peng

    … Laboratory in Newport News, VA. A longitudinally polarized electron beam was scattered by a liquid hydrogen target. The spin direction of the electron beam was switched between left and right helicity states. The cross section under both of the electron states were measured to form the …

    syracuse-diss Repository record

  15. Electroproduction of Neutral Pion Off Helium-4

    Torayev, Bayram2017

    … nuclei. The goal of this work is to extract the beam-spin asymmetry in deeply virtual coherent neutral pion electroproduction, <em>e</em><sup>4</sup>He → <em>e′</em><sup>4</sup>He′π<sup>0</sup>, using the CLAS detector in the experimental Hall B at Thomas Jefferson National Accelerator Facility. …

    odu Repository record

  16. Inclusive scattering of polarized electrons from polarized protons in the Delta-excitation region with BLAST

    Filoti, Octavian Florin

    <p>Inclusive scattering of polarized electrons from polarized protons has been studied using the BLAST detector at MIT-Bates Linear Accelerator Center. The Bates Large Acceptance Spectrometer Toroid (BLAST) is a detector designed to study in a comprehensive and precise way the spin-dependent …

    unh-thes Repository record

  17. Measurement of the Deeply Virtual Compton Scattering Cross Section from the Proton at 10.6 GeV using the CLAS12 Detector

    Lee, SangbaekMassachusetts Institute of Technology2022

    … Acceptance Spectrometer for operation at 12 GeV beam en-ergy (CLAS12) collaboration has taken electron-proton scattering data in fall 2018 using a liquid hydrogen target and the 10.6 GeV polarized electron beam from the Continuous Electron Beam Accelerator Facility (CEBAF). The CLAS12 detector is …

    mit Repository record

  18. Recoil polarization measurements of the proton electromagnetic form factor ratio to high momentum transfer

    Puckett, Andrew James RueheMassachusetts Institute of Technology2010

    … an electromagnetic probe as studied in elastic electronnucleon scattering. These form factors are functions of the squared four-momentum transfer Q2 between the electron and the proton. The two main classes of observables of this reaction are the scattering cross section and polarization …

    mit Repository record

  19. Double spin asymmetry AL̳T̳ in charged pion production from deep inelastic scattering on a transversely polarized ³He target

    Huang, Jin, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2012

    … thesis I discuss the first measurement of the beam-target double-spin asymmetry ALT for charged pion electroproduction in deep inelastic electron scattering on a transversely polarized 3He target. These data were taken between October 2008 to February 2009 using a 5.9 GeV polarized electron …

    mit Repository record

  20. First determination of the weak charge of the proton

    Guo, Fang, Ph. D. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2016

    … with a 180 [mu]A and 88.7% longitudinally polarized electron beam of 1.165 GeV and a 34.4 cm liquid hydrogen target in experimental Hall C at Jefferson Lab. As the Q² at the Qweak experiment is much lower than all previous experiments, the Qweak measurement can be considered as the first …

    mit Repository record

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