Forward light-by-light scattering and electromagnetic correction to hadronic vacuum polarization

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Volodymyr Biloshytskyi
  • En-Hung Chao
  • Antoine Gerardin
  • Jeremy R Green
  • Franziska Hagelstein
  • Harvey B Meyer
  • Julian Parrino
  • Vladimir Pascalutsa
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000959596600004&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1007/JHEP03(2023)194
Externe Identifier
  • Clarivate Analytics Document Solution ID: C1KR5
ISSN
1029-8479
Ausgabe der Veröffentlichung
3
Zeitschrift
JOURNAL OF HIGH ENERGY PHYSICS
Schlüsselwörter
  • Correlation Functions
  • Hadronic Spectroscopy
  • Structure and Interactions
  • Lattice QCD
  • Higher Order Electroweak Calculations
Artikelnummer
ARTN 194
Datum der Veröffentlichung
2023
Status
Published
Titel
Forward light-by-light scattering and electromagnetic correction to hadronic vacuum polarization
Sub types
  • Article

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>Lattice QCD calculations of the hadronic vacuum polarization (HVP) have reached a precision where the electromagnetic (e.m.) correction can no longer be neglected. This correction is both computationally challenging and hard to validate, as it leads to ultraviolet (UV) divergences and to sizeable infrared (IR) effects associated with the massless photon. While we precisely determine the UV divergence using the operator-product expansion, we propose to introduce a separation scale Λ ~ 400 MeV into the internal photon propagator, whereby the calculation splits into a short-distance part, regulated in the UV by the lattice and in the IR by the scale Λ, and a UV-finite long-distance part to be treated with coordinate-space methods, thereby avoiding power-law finite-size effects altogether. In order to predict the long-distance part, we express the UV-regulated e.m. correction to the HVP via the forward hadronic light-by-light (HLbL) scattering amplitude and relate the latter via a dispersive sum rule to <jats:italic>γ</jats:italic><jats:sup>∗</jats:sup><jats:italic>γ</jats:italic><jats:sup>∗</jats:sup> fusion cross-sections. Having tested the relation by reproducing the two-loop QED vacuum polarization (VP) from the tree-level <jats:italic>γ</jats:italic><jats:sup>∗</jats:sup><jats:italic>γ</jats:italic><jats:sup>∗</jats:sup><jats:italic>→ e</jats:italic><jats:sup>+</jats:sup><jats:italic>e</jats:italic><jats:sup><jats:italic>−</jats:italic></jats:sup> cross-section, we predict the expected lattice-QCD integrand resulting from the <jats:italic>γ</jats:italic><jats:sup>∗</jats:sup><jats:italic>γ</jats:italic><jats:sup>∗</jats:sup><jats:italic>→ π</jats:italic><jats:sup>0</jats:sup> process.</jats:p>
Autoren
  • Volodymyr Biloshytskyi
  • En-Hung Chao
  • Antoine Gérardin
  • Jeremy R Green
  • Franziska Hagelstein
  • Harvey B Meyer
  • Julian Parrino
  • Vladimir Pascalutsa
DOI
10.1007/jhep03(2023)194
eISSN
1029-8479
Ausgabe der Veröffentlichung
3
Zeitschrift
Journal of High Energy Physics
Sprache
en
Artikelnummer
194
Online publication date
2023
Status
Published online
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1007/jhep03(2023)194
Datum der Datenerfassung
2023
Titel
Forward light-by-light scattering and electromagnetic correction to hadronic vacuum polarization
Ausgabe der Zeitschrift
2023

Datenquelle: Crossref

Author's licence
CC-BY
Autoren
  • Volodymyr Biloshytskyi
  • En-Hung Chao
  • Antoine Gérardin
  • Jeremy R Green
  • Franziska Hagelstein
  • Harvey B Meyer
  • Julian Parrino
  • Vladimir Pascalutsa
Hosting institution
Universitätsbibliothek Mainz
Sammlungen
  • JGU-Publikationen
Resource version
Published version
DOI
10.1007/JHEP03(2023)194
File(s) embargoed
false
Open access
true
ISSN
1029-8479
Ausgabe der Veröffentlichung
3
Zeitschrift
Journal of high energy physics
Schlüsselwörter
  • 530 Physik
  • 530 Physics
Sprache
eng
Open access status
Open Access
Paginierung
194
Datum der Veröffentlichung
2023
Public URL
https://openscience.ub.uni-mainz.de/handle/20.500.12030/9224
Herausgeber
Springer
Datum der Datenerfassung
2023
Datum, an dem der Datensatz öffentlich gemacht wurde
2023
Zugang
Public
Titel
Forward light-by-light scattering and electromagnetic correction to hadronic vacuum polarization
Ausgabe der Zeitschrift
2023

Files

forward_lightbylight_scatteri-20230619181442379.pdf

Datenquelle: OPENSCIENCE.UB

Beziehungen:
Eigentum von

Werkzeuge