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Sep 5 – 9, 2022
online
US/Eastern timezone
Thank you to all the participants for a great QNP2022!

Theoretical analysis of $\eta^{(\prime)}\to \pi^0 l^+ l^-$ and $\eta^{\prime}\to \eta l^+ l^-$ decays, and new-physics signatures via $C\!P$ violation

Sep 6, 2022, 1:45 PM
25m
online

online

FSU, Tallahassee, FL, USA

Speaker

Mr Emilio Royo (Universitat Autonoma de Barcelona and IFAE)

Description

A theoretical analysis of the $C\!$-conserving semileptonic decays $\eta^{(\prime)}\to \pi^0 l^+ l^-$ and $\eta^{\prime}\to \eta l^+ l^-$ ($l=e$ or $\mu$) is carried out within the framework of the Vector Meson Dominance (VMD) model. A phenomenological model is used to parametrise the VMD coupling constants and the associated numerical values are obtained from an optimisation fit to $V\to P\gamma$ and $P\to V\gamma$ radiative decays ($V=\rho^0,\omega,\phi$ and $P=\pi^0,\eta,\eta^\prime$). Finally, the signature of $C\!P$ violating operators from the SMEFT on experimental observables is investigated and quantified for the $l=\mu$ case.

speaker affiliation Universitat Autonoma de Barcelona and IFAE

Primary author

Mr Emilio Royo (Universitat Autonoma de Barcelona and IFAE)

Co-authors

Prof. Rafel Escribano (Universitat Autonoma de Barcelona and IFAE) Dr Pablo Sanchez-Puertas

Presentation materials