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Hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon at the physical pion mass

Bibliographic Details
Title: Hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon at the physical pion mass
Authors: Zoltan Fodor, Antoine Gérardin, Laurent Lellouch, Kalman K. Szabo, Balint C. Toth, Christian Zimmermann
Contributors: HEP, INSPIRE
Source: Physical Review D. 111
Publication Status: Preprint
Publisher Information: American Physical Society (APS), 2025.
Publication Year: 2025
Subject Terms: [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, High Energy Physics - Lattice, High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Lattice (hep-lat), FOS: Physical sciences, [PHYS.HLAT] Physics [physics]/High Energy Physics - Lattice [hep-lat]
Description: We present a lattice quantum chromodynamics (QCD) calculation of the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon using Nf=2+1+1 flavors of staggered quarks with masses tuned to their physical values. Our final result, in the continuum limit, reads aμhlbl=125.5(11.5)stat(1.9)syst×10−11 where the first error is statistical and the second is systematic. Light, strange, and charm-quark contributions are considered. In addition to the connected and leading disconnected contributions, we also include an estimate of the subleading disconnected diagrams. Our result is compatible with previous lattice QCD and data-driven dispersive determinations.
Document Type: Article
Language: English
ISSN: 2470-0029
2470-0010
DOI: 10.1103/wdrk-7nrt
DOI: 10.48550/arxiv.2411.11719
Access URL: http://arxiv.org/abs/2411.11719
https://hal.science/hal-04808479v1
https://doi.org/10.1103/wdrk-7nrt
Rights: CC BY
CC BY SA
Accession Number: edsair.doi.dedup.....b5eab75c1ce304f0da07216156e00b4c
Database: OpenAIRE
Description
ISSN:24700029
24700010
DOI:10.1103/wdrk-7nrt