Analyticity of $$\eta \pi $$ η π isospin-violating form factors and the $$\tau \rightarrow \eta \pi \nu $$ τ → η π ν second-class decay
Crossref DOI link: https://doi.org/10.1140/epjc/s10052-014-2946-8
Published Online: 2014-07-05
Published Print: 2014-07
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Descotes-Genon, S.
Moussallam, B.
License valid from 2014-07-01