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Study of Quasi-Elastic Scattering on Nuclei: Experimental Verification of the Coulomb Sum Rule
핵의 준탄성 충돌에 대한 연구: 쿨롱 합 법칙의 실험적 검증

DC Field Value Language
dc.contributor.advisor최선호-
dc.contributor.author오유민-
dc.date.accessioned2017-07-14T00:56:38Z-
dc.date.available2017-07-14T00:56:38Z-
dc.date.issued2013-02-
dc.identifier.other000000010361-
dc.identifier.urihttps://hdl.handle.net/10371/121500-
dc.description학위논문 (박사)-- 서울대학교 대학원 : 물리·천문학부(물리학전공), 2013. 2. 최선호.-
dc.description.abstractInclusive electron scattering cross section data from Jefferson Lab Coulomb Sum Rule experiment have been analyzed. The measurement was performed at four
scattering angles of 15, 60, 90 and 120 degrees and with various incident energies ranging 0.4 to 4 GeV. The three momentum transfer range covers 0.55 to 0.95 GeV/c, which has never been explored in the previous experiments. A Rosenbluth separation at constant three momentum transfer was performed to verify the Coulomb Sum Rule, by which the medium modification of the nucleon form factor inside the nucleus can be tested. Coulomb distortion effect was corrected using
Effective Momentum Approximation. Results of 12C and 56Fe data are presented with detailed analysis procedure. Comparison with existing data was performed at low momentum transfers. The possible quenching of the Coulomb Sum was found at the lowest 3-momentum transfers. However, the Coulomb Sum at higher momentum transfer shows interesting features which requires further study.
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dc.description.tableofcontents1 INTRODUCTION 1
1.1 Electron-Nucleus Scattering and Nuclear Response . . . . . . 2
1.2 Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 JLab CSR Experiment . . . . . . . . . . . . . . . . . . . . . . 12
2 THE EXPERIMENT 14
2.1 The Jefferson Lab Electron Beam . . . . . . . . . . . . . . . . 14
2.2 The Experimental Hall A . . . . . . . . . . . . . . . . . . . . 15
2.2.1 Beamline . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.2.2 Target System . . . . . . . . . . . . . . . . . . . . . . 20
2.2.3 Jefferson Lab Hall A High Resolution Spectrometers . 22
2.2.4 Detector Packages . . . . . . . . . . . . . . . . . . . . 25
2.2.5 Data acquisition . . . . . . . . . . . . . . . . . . . . . 32
2.3 Kinematic Coverage . . . . . . . . . . . . . . . . . . . . . . . 32
3 ANALYSIS PART I 34
3.1 Experimental Cross Sections . . . . . . . . . . . . . . . . . . . 34
3.1.1 Incident/scattered energy . . . . . . . . . . . . . . . . 35
3.1.2 Beam current and charge . . . . . . . . . . . . . . . . 39
3.1.3 Deadtime . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.1.4 Tracking efficiency . . . . . . . . . . . . . . . . . . . . 42
3.1.5 HRS optics and track reconstruction . . . . . . . . . . 44
3.1.6 Backgrounds . . . . . . . . . . . . . . . . . . . . . . . 51
3.1.7 Center-of-bin correction . . . . . . . . . . . . . . . . . 56
3.1.8 Radiative corrections . . . . . . . . . . . . . . . . . . . 57
3.1.9 Additional note for fluid targets . . . . . . . . . . . . 60
3.2 Elastic Cross Sections and Absolute Normarlization . . . . . 63
3.3 Summary of Systematic Uncertainties . . . . . . . . . . . . . 66
4 ANALYSIS PART II 68
4.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.2 LT Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5 RESULTS 78
5.1 Cross Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
5.2 LT Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
5.2.1 RL and RT . . . . . . . . . . . . . . . . . . . . . . . . 88
5.2.2 Comparison of RL among Targets . . . . . . . . . . . 90
5.2.3 Comparison with Existing Data . . . . . . . . . . . . . 91
5.3 Coulomb Sum . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
6 SUMMARY AND CONCLUSION 96
A Rosenbluth Formula 100
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dc.formatapplication/pdf-
dc.format.extent4420098 bytes-
dc.format.mediumapplication/pdf-
dc.language.isoen-
dc.publisher서울대학교 대학원-
dc.subjectQuasi-elastic scattering-
dc.subjectRosenbluth separation-
dc.subjectResponse functions-
dc.subjectCoulomb Sum Rule-
dc.subjectJefferson Lab-
dc.subject.ddc523-
dc.titleStudy of Quasi-Elastic Scattering on Nuclei: Experimental Verification of the Coulomb Sum Rule-
dc.title.alternative핵의 준탄성 충돌에 대한 연구: 쿨롱 합 법칙의 실험적 검증-
dc.typeThesis-
dc.contributor.AlternativeAuthorYoomin Oh-
dc.description.degreeDoctor-
dc.citation.pages101-
dc.contributor.affiliation자연과학대학 물리·천문학부(물리학전공)-
dc.date.awarded2013-02-
Appears in Collections:
College of Natural Sciences (자연과학대학)Dept. of Physics and Astronomy (물리·천문학부)Physics (물리학전공)Theses (Ph.D. / Sc.D._물리학전공)
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