Single pion contribution to the hyperfine splitting in muonic hydrogen

Abstract : We consider the simple one-pion exchange (Yukawa potential) contribution to the 2S hyperfine splitting in muonic hydrogen which had, until recently, been disregarded. We evaluate the relevant vertex amplitudes, in particular $\pi^0\mu^+\mu^-$, combining low energy chiral expansions together with experimental data on $\pi^0$ and $\eta$ decays. The result for the 2S HFS is found to be small but not irrelevant.
Document type :
Journal articles
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01234957
Contributor : Sophie Heurteau <>
Submitted on : Friday, November 27, 2015 - 2:39:42 PM
Last modification on : Thursday, January 11, 2018 - 6:14:22 AM

Links full text

Identifiers

Collections

Citation

N. T. Huong, E. Kou, B. Moussallam. Single pion contribution to the hyperfine splitting in muonic hydrogen. Physical Review D, American Physical Society, 2016, 93, pp.114005. ⟨10.1103/PhysRevD.93.114005⟩. ⟨in2p3-01234957⟩

Share

Metrics

Record views

84