Description: Correlations of C and CP violation in η → π0 ℓ+ ℓ− and η′ → η ℓ+ ℓ−

This title appears in the Scientific Report : 2024

Correlations of C and CP violation in η → π0 ℓ+ ℓ− and η′ → η ℓ+ ℓ−

Based on recent progress in the systematic analysis of C and CP violation in the light-meson sector, we calculate the C-odd transition amplitudes η→π0 ℓ+ ℓ− and η′→ η ℓ+ ℓ−. Focusing on long-distance contributions driven by the lowest-lying hadronic intermediate states, we work out the correlations...

Personal Name(s):	Akdag, Hakan (Corresponding author)
	Kubis, Bastian / Wirzba, Andreas
Contributing Institute:	Theorie der starken Wechselwirkung; IKP-3 Theorie der Starken Wechselwirkung; IAS-4
Published in:	Journal of high energy physics, 2024 (2024) S. 59
Imprint:	[Trieste] SISSA 2024
DOI:	10.1007/JHEP03(2024)059
DOI:	10.34734/FZJ-2024-01941
Document Type:	Journal Article
Research Program:	Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups
Link:	OpenAccess
	Publikationsportal JuSER

Please use the identifier: http://dx.doi.org/10.1007/JHEP03(2024)059 in citations.
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2024-01941 in citations.

Based on recent progress in the systematic analysis of C and CP violation in the light-meson sector, we calculate the C-odd transition amplitudes η→π0 ℓ+ ℓ− and η′→ η ℓ+ ℓ−. Focusing on long-distance contributions driven by the lowest-lying hadronic intermediate states, we work out the correlations between these beyond-the-Standard-Model signals and the Dalitz-plot asymmetries in η→π0π+π− and η′→ηπ+π−, using dispersion theory.