Speaker
Dr.
Pablo Sanchez Puertas
(IFAE)
Abstract
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.
Primary author
Dr.
Pablo Sanchez Puertas
(IFAE)
