21-23 March 2022
Europe/Madrid timezone

Axial-vector meson contributions to the HFS of muonic hydrogen

Not scheduled


CASA COLÓN Plaza del Punto, 6 21003 Huelva
Física Teórica


Dr. Pablo Sanchez Puertas (IFAE)


Extremely precise measurements in muonic hydrogen allow to extract properties from the proton, due to its impact on the energy levels.
Such extractions require however from a commensurate precision for other contributions affecting the energy levels, such as two-photon exchange effects.
In this talk, we compute the axial-vector meson contribution to the hyperfine splitting of muonic hydrogen, that is relevant to assess the proton Zemach radius, finding significant differences with respect to previous estimates.

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