ConferenceProceedings of Science · March 7, 2024
In this proceedings, we present the experimental status of measurements of the charge radius of the proton. Its accurate knowledge is not only important for understanding how Quantum Chromodynamics (QCD) is manifested in the non-perturbative QCD region, bu ...
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ConferenceProceedings of Science · January 1, 2018
The nucleon spin structure has puzzled the physics community for about 30 years since the original discovery made by the EMC collaboration in late 1980s that the quark spin only contributes a small fraction to the nucleon spin. With major efforts from both ...
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ConferenceProceedings of Science · January 1, 2018
As a part of the general nucleon imaging effort, there have been many efforts to access the transverse momentum dependent parton distributions (TMDs) by using the semi-inclusive deep inelastic scattering (SIDIS) processes. The recently upgraded Continuous ...
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ConferenceProceedings of Science · January 1, 2018
In this closing talk, I offer some personal reflection in the context of spin symposia on its global nature, its impact and also on the diverse spin related topics in various sub-fields of physics from some of the most recent symposia. Since the last Spin ...
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ConferenceProceedings of Science · January 1, 2018
The 3D imaging of nucleon is at the frontier of understanding the visible Universe and QCD. There are many efforts to access the nucleon’s 3D partonic structure both in the transverse coordinate space (Generalized Parton Distributions) and in the transvers ...
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ConferenceEPJ Web of Conferences · March 25, 2016
The puzzle of proton charge radius was recently raised by the measurement of muonic hydrogen Lamb shift at Paul Scherrer Institute (PSI), whose results were seven standard deviations smaller than the CODATA recommended value. To investigate this discrepanc ...
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ConferenceEPJ Web of Conferences · March 25, 2016
Nucleon electromagnetic form factors are the fundamental quantities that are related to a two-dimensional view of the charge and magnetization distribution in the nucleon. They are essential in understanding the nucleon electromagnetic structure. In this a ...
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ConferenceInternational Journal of Modern Physics: Conference Series · January 2016
Hadronic parity violation uses quark-quark weak interactions to probe nonperturbative strong interaction dynamics through two nonperturbative QCD scales: [Formula: see text] and the fine-tuned MeV scales of NN bound states in low energy nuclear ph ...
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ConferenceProceedings of Science · January 1, 2016
The generalized parton distribution (GPD) functions and the transverse momentum dependent parton distribution (TMD) functions provide three-dimensional tomographies in the combined momentum-coordinate space (GPD) and the complete momentum space (TMD) of pa ...
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ConferenceProceedings of Science · January 1, 2015
In this talk we discuss the recently completed and upcoming experiments on few-nucleon targets at the High Intensity g-ray Source (HIγS) facility located at Triangle Universities Nuclear Laboratory (TUNL). Several experiments took place or are planned in o ...
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ConferenceProceedings of the 2011 Meeting of the Division of Particles and Fields of the American Physical Society Dpf 2011 · January 1, 2011
A significant fraction of the research effort at the Triangle Universities Nuclear Laboratory (TUNL) focuses on weak interaction studies and searches for physics beyond the Standard Model. One major effort is the development of a new experimental technique ...
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ConferenceProceedings of Science · January 1, 2010
Significant progress has been made in recent years in both unpolarized structure functions of the nucleon as well as polarized structure functions. More recently, both experimental and theoretical studies of the structure of the nucleon have advanced beyon ...
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ConferenceAip Conference Proceedings · August 4, 2009
The 12 GeV upgrade at Jefferson Lab will open a new era of precision measurement of the Transverse Momentum Dependent parton distribution functions (TMDs) through the Semi-Inclusive Deep-Inelastic Scattering (SIDIS). In this talk, we discussed the projecte ...
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ConferenceProceedings of Science · January 1, 2009
In this talk, we discuss an experiment that has been conducted recently at the High Intensity Gamma Source (HIGS) facility at the Duke Free Electron Laser Laboratory (DFELL) on three-body photodisintegration of circularly polarized photons from a longtudin ...
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