Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements
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Kent State University / OhioLINK
2012
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=kent1350487441 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-kent13504874412021-08-03T05:38:02Z Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements Long, Elena A. Nuclear Physics Particle Physics polarized helium-3 3He He-3 neutron asymmetry plane wave impulse approximation PWIA quasi elastic electron scattering Ay0 Ay AT AL vertical longitudinal transverse Asymmetry measurements were conducted in Jefferson Lab’s experimental Hall A through electron scattering from a polarized <sup>3</sup>He target in the quasi-elastic <sup>3</sup>He(<i>e, e′n</i>) reaction. Measurements were made with the target polarized in the longitudinal direction with respect to the incoming electrons (A<sub>L</sub>), in a transverse direction that was orthogonal to the beam-line and parallel to the q-vector (A<sub>T</sub>), and in a vertical direction that was orthogonal to both the beam-line and the q-vector (A<sub>y</sub><sup>0</sup>). The experiment measured A<sub>y</sub><sup>0</sup> at four-momentum transfer squared (Q<sup>2</sup>) of 0.127 (GeV/<i>c</i>)<sup>2</sup>, 0.456 (GeV/<i>c</i>)<sup>2</sup>, and 0.953 (GeV/<i>c</i>)<sup>2</sup>. The A<sub>T</sub> and A<sub>L</sub> asymmetries were both measured at Q<sup>2</sup> of 0.505 (GeV/<i>c</i>)<sup>2</sup> and 0.953 (GeV/<i>c</i>)<sup>2</sup>. This is the first time that three orthogonal asymmetries have been measured simultaneously. Results from this experiment are compared with the plane wave impulse approximation (PWIA) and Faddeev calculations. These results provide important tests of models that use <sup>3</sup>He as an effective neutron target and show that the PWIA holds above Q<sup>2</sup> of 0.953 (GeV/<i>c</i>)<sup>2</sup>. 2012-10-17 English text Kent State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=kent1350487441 http://rave.ohiolink.edu/etdc/view?acc_num=kent1350487441 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Nuclear Physics Particle Physics polarized helium-3 3He He-3 neutron asymmetry plane wave impulse approximation PWIA quasi elastic electron scattering Ay0 Ay AT AL vertical longitudinal transverse |
| spellingShingle |
Nuclear Physics Particle Physics polarized helium-3 3He He-3 neutron asymmetry plane wave impulse approximation PWIA quasi elastic electron scattering Ay0 Ay AT AL vertical longitudinal transverse Long, Elena A. Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements |
| author |
Long, Elena A. |
| author_facet |
Long, Elena A. |
| author_sort |
Long, Elena A. |
| title |
Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements |
| title_short |
Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements |
| title_full |
Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements |
| title_fullStr |
Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements |
| title_full_unstemmed |
Polarized <sup>3</sup>He(e,e'n) Asymmetries in Three Orthogonal Measurements |
| title_sort |
polarized <sup>3</sup>he(e,e'n) asymmetries in three orthogonal measurements |
| publisher |
Kent State University / OhioLINK |
| publishDate |
2012 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=kent1350487441 |
| work_keys_str_mv |
AT longelenaa polarizedsup3supheeenasymmetriesinthreeorthogonalmeasurements |
| _version_ |
1719422824653783040 |