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Sep 22 – 27, 2024
Jefferson Lab
US/Eastern timezone

Record setting Compton polarimetry at 2 GeV

Sep 27, 2024, 9:20 AM
20m
Cebaf Center Auditorium (Jefferson Lab)

Cebaf Center Auditorium

Jefferson Lab

12000 Jefferson Ave. Newport News, VA 23606

Speaker

Dr Mark Dalton (Jefferson Lab)

Description

A new level of accuracy in the measurement of electron beam polarization using Compton polarimetry was achieved during the CREX experiment. Conducted in experimental Hall A at Jefferson Lab in 2020, the back-scattered photons from the Compton scattering process were detected. A total uncertainty of dP/P=0.36% was achieved, surpassing even the measurement from the SLAC Large Detector (SLD) Compton polarimeter. The future Jefferson Lab flagship measurements to be made by the MOLLER and SoLID experiments will required polarization at this level. In this talk I will detail the steps required to achieve this high precision measurement.

Primary author

Dr Mark Dalton (Jefferson Lab)

Presentation materials