NUCLEON SPIN PHYSICS USING CEBAF AT 11 GeV

2003 ◽  
Vol 18 (08) ◽  
pp. 1281-1288
Author(s):  
ZEIN-EDDINE MEZIANI
Keyword(s):  
Electron Beam ◽  
Nucleon Spin ◽  
Accelerator Facility ◽  
Spin Physics ◽  
Jefferson Lab ◽  
Polarized Target ◽  
Polarized Beam

We disscuss key experiments that address some of the nucleon spin physics questions as part of the 12 GeV planning for the energy upgrade of the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab. These experiments take advantage of a highly polarized beam and the availability of polarized target namely 3 He combined with a Medium Acceptance Spectrometer (MAD) in Hall A.

scholarly journals Jefferson Lab 12 GeV Science Program

2015 ◽  
Vol 37 ◽  
pp. 1560019 ◽  
Author(s):  
R. D. McKeown
Keyword(s):  
Electron Beam ◽  
Experimental Program ◽  
Science Program ◽  
Experimental Equipment ◽  
Accelerator Facility ◽  
Jefferson Lab ◽  
The Future ◽  
Discovery Potential ◽  
Electroweak Physics

The Continuous Electron Beam Accelerator Facility (CEBAF) and associated experimental equipment at Jefferson Lab are presently being upgraded, which will enable a new experimental program with substantial discovery potential to address important topics in nuclear, hadronic, and electroweak physics. Further in the future, it is envisioned that the Laboratory will evolve into an electron-ion colliding beam facility.

scholarly journals Dynamically polarized target for the g 2 p and G E p experiments at Jefferson Lab

2014 ◽  
Vol 45 (1) ◽  
pp. 303-304 ◽  
Author(s):  
J. Pierce ◽  
J. Maxwell ◽  
C. Keith
Keyword(s):  
Jefferson Lab ◽  
Polarized Target

scholarly journals Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab

2018 ◽  
Vol 172 ◽  
pp. 02004 ◽  
Author(s):  
Gerard Gilfoyle
Keyword(s):  
United States ◽  
Electron Beam ◽  
Form Factors ◽  
The United States ◽  
Precision Measurements ◽  
Electromagnetic Form Factors ◽  
Jefferson Lab ◽  
Atomic Nuclei ◽  
Perturbative Regime ◽  
Nucleon Form Factors

The elastic, electromagnetic form factors are fundamental observables that describe the internal structure of protons, neutrons, and atomic nuclei. Jefferson Lab in the United States has completed the 12 GeV Upgrade that will open new opportunities to study the form factors. A campaign to measure all four nucleon form factors (electric and magnetic ones for both proton and neutron) has been approved consisting of seven experiments in Halls A, B, and C. The increased energy of the electron beam will extend the range of precision measurements to higher Q2 for all four form factors together. This combination of measurements will allow for the decomposition of the results into their quark components and guide the development of a QCD-based understanding of nuclei in the non-perturbative regime. I will present more details on the 12 GeV Upgrade, the methods used to measure the form factors, and what we may learn.

scholarly journals DARK FORCES SEARCHES IN FIXED TARGET EXPERIMENTS

2014 ◽  
Vol 35 ◽  
pp. 1460392
Author(s):  
M. BATTAGLIERI
Keyword(s):  
Nuclear Physics ◽  
Electromagnetic Current ◽  
Beyond The Standard Model ◽  
Fixed Target ◽  
Accelerator Facility ◽  
Fixed Target Experiments ◽  
Jefferson Lab ◽  
Hidden Sector ◽  
The Standard Model ◽  
Massive Boson

Searches for physics Beyond the Standard Model (BSM) can be carried out with precise and GeV-energy-range experiments. In many string theories, a Hidden Sector, decoupled to the SM, foresees the existence of a new massive boson, the A′ or heavy photon, that weakly couples to the electromagnetic current. A new particle with mass in the range of 1 MeV - 1 GeV could explain many astro-particle observations (e.g. positron excess seen by PAMELA and AMS experiments) and some anomalies not yet fully understood (e.g. muon g - 2 factor). The search for A′ has motivated intense experimental activities in almost every accelerator facility using different techniques: colliding beam, fixed target experiments, meson rare decays. Jefferson Lab, a world-leading nuclear physics laboratory, is planning a set of fixed target experiments aiming to discover the A′ or set new limits in its mass and coupling, with an unprecedented sensitivity and reach capability. In this contribution, after reviewing the physics case and some experimental evidences, I will report on the program of measurements planned at Jefferson Lab for the next years.

Measurement of the Spin-Dependent Part of the Scattering Amplitude of Slow Neutrons onF19Using a Polarized Beam and a Polarized Target

1972 ◽  
Vol 28 (18) ◽  
pp. 1225-1225 ◽  
Author(s):  
A. Abragam ◽  
G. L. Bacchella ◽  
C. Long ◽  
P. Mériel ◽  
J. Peisvaux ◽  
...  
Keyword(s):  
Scattering Amplitude ◽  
Polarized Target ◽  
Dependent Part ◽  
Polarized Beam ◽  
Slow Neutrons
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