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15–19 Nov 2021
Institute of High Energy Physics (IHEP), CAS
Asia/Shanghai timezone

Short-distance constraints in hadronic-light-by-light for the muon $g-2$

Not scheduled
15m
Institute of High Energy Physics (IHEP), CAS

Institute of High Energy Physics (IHEP), CAS

19B Yuquan Road, Shijingshan District, Beijing, China
Parallel-Goldstone Boson

Speaker

Johan Bijnens (L)

Description

We have made recent progress in studying the short-distance properties of the hadronic light-by-light contribution to the muon $g-2$. The intermediate and short-distance part is a major contributor to the error of the hteoretical prediction, see the white paper [arxiv:2006.04822, Physics Reports 887 (2020) 1-166]. We have recently shown that the massless quark-loop is the first term in a systematic expansion at short-distance [arxiv:1908.03331, Phys.Lett. B798 (2019) 134994].This result already helped in the white paper in bringing down the error. Since then we have shown that both nonperturbative [arxiv:2008.13487, JHEP 10 (2020) 203] and the perturbative corrections [arxiv:2101.09169, JHEP 04 (2021) 240] are under control. The talk will describe these developments and how they fit in the total theopretical prediction for the muon $g-2$.

Primary authors

Antonio Rodríguez (IFIC (CSIC-Univ Valencia)) Johan Bijnens (L) Dr Nils Hermansson Truedsson (University of Berne)

Presentation materials

There are no materials yet.