2026-09-19T08:03:29Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/395592022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Haiyan Gao.
Seely, Jason (Charles Jason)
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2007-11-16T14:24:20Z
2007-11-16T14:24:20Z
2006
2006
http://hdl.handle.net/1721.1/39559
174146493
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.
Includes bibliographical references (leaves 171-174).
The EMC effect has been with us for over 20 years. During this time, the nuclear dependence of the structure functions, and therefore the underlying quark distributions, has been studied with much success. However, the bulk of the experimental effort has been to measure the effect in heavy nuclei where it has the same zBj dependence and differs only in magnitude. Calculations predict large differences in both the magnitude and zBj-dependence of the EMC effect in 3He and 4He and precise measurements of the EMC effect in these nuclei could be used to distinguish between existing models. E03-103 measured the inclusive electron scattering cross-section on 1H, 2H, 3He, and 4He, as well as the heavier targets Be, C, Cu, and Au. This thesis describes the experiment in detail and presents results for 3He, 4He, and carbon. These data provide the first measurement of the EMC effect in 3He above xBj > 0.4, and improve upon the existing measurement of the effect in 4He.
by Jason Seely.
Ph.D.
174 leaves
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Physics.
Precise measurement of the nuclear dependence of structure functions in light nuclei
Thesis
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<Abstract>The EMC effect has been with us for over 20 years. During this time, the nuclear dependence of the structure functions, and therefore the underlying quark distributions, has been studied with much success. However, the bulk of the experimental effort has been to measure the effect in heavy nuclei where it has the same zBj dependence and differs only in magnitude. Calculations predict large differences in both the magnitude and zBj-dependence of the EMC effect in 3He and 4He and precise measurements of the EMC effect in these nuclei could be used to distinguish between existing models. E03-103 measured the inclusive electron scattering cross-section on 1H, 2H, 3He, and 4He, as well as the heavier targets Be, C, Cu, and Au. This thesis describes the experiment in detail and presents results for 3He, 4He, and carbon. These data provide the first measurement of the EMC effect in 3He above xBj > 0.4, and improve upon the existing measurement of the effect in 4He.</Abstract>
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