Nuclear Dependence of Beam Normal Single Spin Asymmetry in Elastic Scattering from Nuclei
Abstract
We propose to measure the beam normal single spin asymmetry in elastic scattering of transversely polarized electron from target nuclei with 12 90 at Q = 0.0092 GeV to study its nuclear dependence. While the theoretical calculations based on two-photon exchange suggest no nuclear dependence at this kinematics, the results of 208Pb from Jefferson Lab show a striking disagreement from both theoretical predictions and light nuclei measurements. The proposed measurements will provide new data for intermediate to heavy nuclei where no data exists for 20 in the kinematics of previous high-energy experiments. It will allow one to investigate the missing contributions that are not accounted in the current theoretical models.
Keywords
Cite
@article{arxiv.2411.10267,
title = {Nuclear Dependence of Beam Normal Single Spin Asymmetry in Elastic Scattering from Nuclei},
author = {Ciprian Gal and Chandan Ghosh and Sanghwa Park and Devi Adhikari and David Armstrong and Rakitha Beminiwattha and Alexandre Camsonne and Shashini Chandrasena and Mark Dalton and Abhay Deshpande and Dave Gaskell and Douglas Higinbotham and Charles J. Horowitz and Paul King and Krishna Kumar and Tyler Kutz and Juliette Mammei and Dustin McNulty and Robert Michaels and Caryn Palatchi and Anil Panta and Kent Paschke and Mark Pitt and Arindam Sen and Neven Simicevic and Lasitha Weliyanga and Steven P. Wells},
journal= {arXiv preprint arXiv:2411.10267},
year = {2024}
}
Comments
Submitted to Jefferson Lab PAC52