Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ
In Refs. [1,2] we provided a complete dispersive evaluation of the hadronic light-by-light (HLbL) contribution to the anomalous magnetic moment of the muon. While the evaluation strategy was developed for the kinematic situation determined by the muon mass, a similar approach also applies to the HLb...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325003260 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850271249580687360 |
|---|---|
| author | Martin Hoferichter Peter Stoffer Maximilian Zillinger |
| author_facet | Martin Hoferichter Peter Stoffer Maximilian Zillinger |
| author_sort | Martin Hoferichter |
| collection | DOAJ |
| description | In Refs. [1,2] we provided a complete dispersive evaluation of the hadronic light-by-light (HLbL) contribution to the anomalous magnetic moment of the muon. While the evaluation strategy was developed for the kinematic situation determined by the muon mass, a similar approach also applies to the HLbL corrections to the anomalous magnetic moments of the electron and τ lepton, shifting the sensitivity in the loop integrals to smaller and larger momenta, respectively. In this Letter, we propagate the corresponding uncertainties of the various contributions, obtaining aeHLbL=3.51(23)×10−14 and aτHLbL=3.77(29)×10−8. |
| format | Article |
| id | doaj-art-2af4134e8d294b54bb3fd02ee1e4d2de |
| institution | OA Journals |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-2af4134e8d294b54bb3fd02ee1e4d2de2025-08-20T01:52:18ZengElsevierPhysics Letters B0370-26932025-07-0186613956510.1016/j.physletb.2025.139565Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τMartin Hoferichter0Peter Stoffer1Maximilian Zillinger2Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, SwitzerlandPhysik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland; PSI Center for Neutron and Muon Sciences, 5232 Villigen PSI, SwitzerlandAlbert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland; Corresponding author.In Refs. [1,2] we provided a complete dispersive evaluation of the hadronic light-by-light (HLbL) contribution to the anomalous magnetic moment of the muon. While the evaluation strategy was developed for the kinematic situation determined by the muon mass, a similar approach also applies to the HLbL corrections to the anomalous magnetic moments of the electron and τ lepton, shifting the sensitivity in the loop integrals to smaller and larger momenta, respectively. In this Letter, we propagate the corresponding uncertainties of the various contributions, obtaining aeHLbL=3.51(23)×10−14 and aτHLbL=3.77(29)×10−8.http://www.sciencedirect.com/science/article/pii/S0370269325003260 |
| spellingShingle | Martin Hoferichter Peter Stoffer Maximilian Zillinger Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ Physics Letters B |
| title | Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ |
| title_full | Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ |
| title_fullStr | Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ |
| title_full_unstemmed | Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ |
| title_short | Hadronic light-by-light scattering in the anomalous magnetic moments of electron and τ |
| title_sort | hadronic light by light scattering in the anomalous magnetic moments of electron and τ |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325003260 |
| work_keys_str_mv | AT martinhoferichter hadroniclightbylightscatteringintheanomalousmagneticmomentsofelectronandt AT peterstoffer hadroniclightbylightscatteringintheanomalousmagneticmomentsofelectronandt AT maximilianzillinger hadroniclightbylightscatteringintheanomalousmagneticmomentsofelectronandt |