Recent measurements of observables related to proton and neutron spin properties at low energies are in disagreement with the available theoretical predictions, and continue to challenge nuclear experimentalists and theorists alike.
This is a preview of subscription content, log in via an institution to check access.
References
Bernard, V. Prog. Part. Nucl. Phys. 60, 82–160 (2008).
Scherer, S. Prog. Part. Nucl. Phys. 64, 1–60 (2010).
Zheng, X. et al. Nat. Phys. https://doi.org/10.1038/s41567-021-01198-z (2021).
Sulkosky, V. et al. Nat. Phys. https://doi.org/10.1038/s41567-021-01245-9 (2021).
Ji, X.-D. & Osborne, J. J. Phys. G 27, 127–146 (2001).
Drechsel, D., Pasquini, B. & Vanderhaeghen, M. Phys. Rep. 378, 99–205 (2003).
Bernard, V., Epelbaum, E., Krebs, H. & Meissner, U. G. Phys. Rev. D 87, 054032 (2013).
Alarcón, J. M., Hagelstein, F., Lensky, V. & Pascalutsa, V. Phys. Rev. D 102, 114026 (2020).
Weller, H. R. et al. Prog. Part. Nucl. Phys. 62, 257–303 (2009).
Howell, C. R. et al. Preprint at https://arxiv.org/abs/2012.10843 (2020).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Competing interests
The author declares no competing interests.
Rights and permissions
About this article
Cite this article
Ahmed, M.W. Nucleon spins surprise. Nat. Phys. 17, 670–671 (2021). https://doi.org/10.1038/s41567-021-01263-7
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41567-021-01263-7
- Springer Nature Limited