Short-distance constraints for the longitudinal component of the hadronic light-by-light amplitude : an update
© The Author(s) 2021..
We reassess the impact of short-distance constraints for the longitudinal component of the hadronic light-by-light amplitude on the anomalous magnetic moment of the muon, a μ = ( g - 2 ) μ / 2 , by comparing different solutions that have recently appeared in the literature. In particular, we analyze the relevance of the exact axial anomaly and its impact on a μ and conclude that it remains rather limited. We show that all recently proposed solutions agree well within uncertainties on the numerical estimate of the impact of short-distance constraints on a μ , despite differences in the concrete implementation. We also take into account the recently calculated perturbative corrections to the massless quark loop to update our estimate and outline the path towards future improvements.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2021 |
|---|---|
| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:81 |
|---|---|
| Enthalten in: |
The European physical journal. C, Particles and fields - 81(2021), 8 vom: 25., Seite 702 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Hagelstein, F [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
|---|
| Anmerkungen: |
Date Revised 18.02.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
|---|
| doi: |
10.1140/epjc/s10052-021-09513-x |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM332589722 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM332589722 | ||
| 003 | DE-627 | ||
| 005 | 20231225215900.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2021 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1140/epjc/s10052-021-09513-x |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1108.xml |
| 035 | |a (DE-627)NLM332589722 | ||
| 035 | |a (NLM)34720724 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 245 | 1 | 0 | |a Short-distance constraints for the longitudinal component of the hadronic light-by-light amplitude |b an update |
| 264 | 1 | |c 2021 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 18.02.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © The Author(s) 2021. | ||
| 520 | |a We reassess the impact of short-distance constraints for the longitudinal component of the hadronic light-by-light amplitude on the anomalous magnetic moment of the muon, a μ = ( g - 2 ) μ / 2 , by comparing different solutions that have recently appeared in the literature. In particular, we analyze the relevance of the exact axial anomaly and its impact on a μ and conclude that it remains rather limited. We show that all recently proposed solutions agree well within uncertainties on the numerical estimate of the impact of short-distance constraints on a μ , despite differences in the concrete implementation. We also take into account the recently calculated perturbative corrections to the massless quark loop to update our estimate and outline the path towards future improvements | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Hagelstein, F |e verfasserin |4 aut | |
| 700 | 1 | |a Hoferichter, M |e verfasserin |4 aut | |
| 700 | 1 | |a Laub, L |e verfasserin |4 aut | |
| 700 | 1 | |a Stoffer, P |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The European physical journal. C, Particles and fields |d 2012 |g 81(2021), 8 vom: 25., Seite 702 |w (DE-627)NLM247482579 |x 1434-6044 |7 nnns |
| 773 | 1 | 8 | |g volume:81 |g year:2021 |g number:8 |g day:25 |g pages:702 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1140/epjc/s10052-021-09513-x |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 81 |j 2021 |e 8 |b 25 |h 702 | ||