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Title Ultra-High Precision Compton Polarimetry at 2 GeV
Authors Allison Zec, Sachinthani Premathilake, Juan Cornejo, Mark Dalton, Ciprian Gal, David Gaskell, Michael Gericke, Iris Halilovic, Hongxiu Liu, Juliette Mammei, Robert Michaels, Caryn Palatchi, Jie Pan, Kent Paschke, Brian Quinn, Jinlong Zhang
JLAB number JLAB-PHY-23-3924
LANL number (None)
Other number DOE/OR/23177-7148
Document Type(s) (Journal Article) 
Associated with EIC: No
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)

Compiled for Physical Review C
Volume 109
Page(s) 024323
Publication Abstract: We report a high precision measurement of electron beam polarization using Compton polarimetry. The measurement was made in experimental Hall A at Jefferson Lab during the CREX experiment in 2020. A precision of dP/P = 0.36% was achieved detecting the back-scattered photons from the Compton scattering process. This is the highest precision in a measurement of electron beam polarization using Compton scattering ever reported, surpassing the ground-breaking measurement from the SLD Compton polarimeter. Such precision reaches the level required for the future flagship measurements to be made by the MOLLER and SoLID Experiments.
Experiment Numbers: E12-12-004
Group: Hall D
Document: pdf
Accepted Manuscript: Compton.pdf
Supporting Documents:
Supporting Datasets: