| Autor: |
Pauk, Vladyslav, Carlson, Carl E., Vanderhaeghen, Marc |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Phys. Rev. C 102, 035201 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevC.102.035201 |
| Popis: |
We propose a new way to experimentally determine the subleading low-energy structure constant of doubly-virtual Compton scattering on a proton. Such empirical determination will reduce the theoretical model error in estimates of the hadronic correction to the muonic hydrogen Lamb shift. We demonstrate that the di-lepton forward-backward asymmetry in the $e^- p \to e^- p \, e^- e^+$ process, which can be accessed at electron scattering facilities, yields a large sensitivity to this so far unknown low-energy constant. |
| Databáze: |
arXiv |
| Externí odkaz: |
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