English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Measuring the 2S-2P Lamb shift in a hydrogen-like muonic atom allows one toextract its nuclear charge radius with a high precision that is limited by theuncertainty in the nuclear structure corrections. The charge radius of theproton thus extracted was found to be 7-sigma away from the CODATA value, inwhat has become the yet unsolved "proton radius puzzle". Further experimentscurrently aim at the isotopes of hydrogen and helium: the precise extraction oftheir radii may provide a hint at the solution of the puzzle. We present thefirst ab initio calculation of nuclear structure corrections, including thenuclear polarization correction, to the 2S-2P transition in $\mu^3$He$^+$ and$\mu^3$H, and assess solid theoretical error bars. Our predictions reduce theuncertainty in the nuclear structure corrections to the level of a few percentsand will be instrumental to the on-going $\mu^3$He$^+$ experiment. We alsosupport the mirror $\mu\,^3$H system as a candidate for further probing of thenucleon polarizabilities and shedding more light on the puzzle.

Nuclear structure corrections to the Lamb shift in $\mu^3$He$^+$ and $\mu^3$H