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Publication Information
Title Experimental Study of the 3He and Neutron Spin Structure at Low Q2 and The Upgrade of the JLab Polarized 3He Target
Abstract In the scattering process off a nuclear or nucleon target, the Gerasimov-Drell- Hearn (GDH) sum rule for real photons (Q2=0 where Q2 ? ?q2 with q the photon's 4-momentum) relates static properties of the target particle's ground state to dynamic properties of all its excited states. On the other side of the Q2 spectrum, the Bjorken sum rule holds in the Bjorken limit Q2 -> inf. Bjorken sum rule relates the final structure functions of the proton and neutron to the nucleon axial coupling constant in weak decay. These two sum rules belong to domains where calculations are achievable but use different degrees of freedom: hadronic degrees of freedom at low Q2 versus partonic degrees of freedom at intermediate Q2. Meanwhile, different methods have been used to connect the two sum rules at finite Q2 values: Chiral Perturbation Theory is used to expand the GDH sum rule while Operator Product Expansion is used to expand the Bjorken sum rule. In recent decades, improvements in polar
Author(s) Nguyen Ton
Publication Date December 2019
Document Type Thesis
Primary Institution University of Virginia, Charlottesville, VA
Affiliation Exp Nuclear Physics / Experimental Halls / Hall A
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-19-3137 OSTI Number: 1595246
LANL Number: Other Number: DOE/OR/23177-4912
Associated with an experiment Yes
Experiment Number(s)
E97-110
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Thesis
Thesis Type PhD
Advisor Institution
1. Xiaochao Zheng UVA
2. Alexandre Deur JLAB
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Document(s)
Dataset(s) (none)
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