Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Pseudoscalar transition form factors and the hadronic light-by-light contribution to the muon g-2

Aug 12, 2022, 3:50 PM
20m
CP1-HSZ/Ground-0.001 - HS3 (CP1-HSZ)

CP1-HSZ/Ground-0.001 - HS3

CP1-HSZ

50
Oral Presentation QCD in searches for physics beyond the Standard Model QCD in searches for physics beyond the Standard Model

Speaker

Willem Verplanke (CPT Marseille)

Description

We present preliminary results toward the extraction of the transition form factors $\mathcal{F}_{p\to \gamma^*\gamma^*}$ ($p=\pi^0,\eta,\eta^{\prime}$) using lattice QCD with staggered fermions on $N_f=2+1+1$ gauge ensembles generated by the Budapest-Marseille-Wuppertal collaboration. These form factors are essential ingredients for the computation of the light pseudoscalar pole contributions to the hadronic light-by-light scattering in the muon $g-2$. In the first part of this talk we focus on the $\pi^0$ and compare it to previous results; in the second part we report the status of the analysis for the $\eta,\eta^{\prime}$.

Primary author

Willem Verplanke (CPT Marseille)

Co-author

BMW Collaboration

Presentation materials