Authors:	Lenz, Thomas
Title:	Experimental inputs to the standard model prediction of (g−2)μ
Online publication date:	13-Apr-2023
Year of first publication:	2022
Language:	english
Abstract:	A deviation of 4.2σ , between the experimental measurement and the theoretical determination of the anomalous magnetic moment of the muon aμ=(g−2)μ/2 , has been observed. With increased experimental precision expected in the near future, the theoretical prediction within the Standard Model also needs to be improved. Its total uncertainty is limited by the two hadronic contributions, namely the hadronic vacuum polarization and the hadronic light-by-light contribution. The BESIII experiment at the BEPCII accelerator offers the largest datasets in the τ-charm energy region and is, therefore, perfectly suited to provide cross section and form factor measurements in e+e−collisions for data-driven improvements of the Standard Model prediction.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8911
Version:	Published version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Acta Physica Polonica B 15 2
Pages or article number:	A1
Publisher:	Inst. of Physics of the Jagellonian University
Publisher place:	Kraków
Issue date:	2022
ISSN:	1509-5770
Publisher DOI:	10.5506/aphyspolbsupp.15.2-a1
Appears in collections:	DFG-491381577-G