Ultra-High precision Compton polarimetry at 2 GeV
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 total uncertainty of dP/P=0.36% was achieved detecting the back-scattered photons from the Compton scattering process. This is the highest accuracy in a measurement of electron beam polarization using Compton scattering ever reported, surpassing the ground-breaking measurement from the SLAC Large Detector (SLD) Compton polarimeter. Such uncertainty reaches the level required for the future flagship measurements to be made by the MOLLER and SoLID experiments.
- D. Adhikari et al. (CREX), Phys. Rev. Lett. 129, 042501 (2022), arXiv:2205.11593 [nucl-ex] .
- S. Abrahamyan et al., Phys. Rev. Lett. 108, 112502 (2012), arXiv:1201.2568 [nucl-ex] .
- D. Wang et al. (PVDIS), Nature 506, 67 (2014).
- J. A. Magee et al., Phys. Lett. B 766, 339 (2017), arXiv:1610.06083 [physics.ins-det] .
- N. Falletto et al. (HAPPEX), Nucl. Instrum. Meth. A 459, 412 (2001).
- M. Baylac et al., Phys. Lett. B 539, 8 (2002), arXiv:hep-ex/0203012 .
- S. Escoffier et al., Nucl. Instrum. Meth. A 551, 563 (2005), arXiv:physics/0504195 .
- A. Narayan et al., Phys. Rev. X 6, 011013 (2016), arXiv:1509.06642 [nucl-ex] .
- M. Friend et al., Nucl. Instrum. Meth. A 676, 96 (2012a), arXiv:1108.3116 [physics.ins-det] .
- Z. Ahmed et al. (HAPPEX), Phys. Rev. Lett. 108, 102001 (2012), arXiv:1107.0913 [nucl-ex] .
- A. Rakhman et al., Nucl. Instrum. Meth. A 822, 82 (2016), arXiv:1601.00251 [physics.ins-det] .
- M. Posik et al. (Jefferson Lab Hall A), Phys. Rev. Lett. 113, 022002 (2014), arXiv:1404.4003 [nucl-ex] .
- D. S. Parno et al. (Jefferson Lab Hall A), Phys. Lett. B 744, 309 (2015), arXiv:1406.1207 [nucl-ex] .
- M. Defurne et al. (Jefferson Lab Hall A), Phys. Rev. C 92, 055202 (2015), arXiv:1504.05453 [nucl-ex] .
- A. Franzen, (2019), figure created using ComponentLibrary, which is distributed under a creative commons license. http://www.gwoptics.org/ComponentLibrary/.
- D. Androić et al. (Qweak), Nature 557, 207 (2018), arXiv:1905.08283 [nucl-ex] .
- K. Abe et al. (SLD), Phys. Rev. Lett. 84, 5945 (2000), arXiv:hep-ex/0004026 .
- M. Woods (SLD), in Workshop on High-energy Electron Polarimeters (Pre-symposium for SPIN 96) (1996) pp. 843–845, arXiv:hep-ex/9611005 .
- P. Asenbaum and M. Arndt, Opt. Lett. 36, 3720 (2011).
- H. Hurwitz and R. C. Jones, J. Opt. Soc. Am. 31, 493 (1941).
- A. Denner and S. Dittmaier, Nucl. Phys. B 540, 58 (1999), arXiv:hep-ph/9805443 .
- A. Zec, Compton Polarimetry for Neutral Weak Form Factor Measurements in 208208{}^{208}start_FLOATSUPERSCRIPT 208 end_FLOATSUPERSCRIPTPb and 4848{}^{48}start_FLOATSUPERSCRIPT 48 end_FLOATSUPERSCRIPTCa, Ph.D. thesis, Physics - Graduate School of Arts and Sciences, University of Virginia (2022).
- D. E. King et al., Nucl. Instrum. Meth. A 1045, 167506 (2023), arXiv:2207.02150 [nucl-ex] .
- J. Benesch et al. (MOLLER), (2014), arXiv:1411.4088 [nucl-ex] .
- J. Arrington et al. (Jefferson Lab SoLID), (2022), arXiv:2209.13357 [hep-ex] .
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.