Journal Article/Report/Contribution to a conference proceedings

PUBDB-2019-00019

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hadronic light-by-light scattering contribution to the muon $g-2$ on the lattice

Asmussen, N. ; Gérardin, A. ; Green, J.DESY* ; Gryniuk, O. ; von Hippel, G. ; Meyer, H. B. ; Nyffeler, A. (Corresponding author) ; Pascalutsa, V. ; Wittig, H.

2018
EDP Sciences Les Ulis

This record in other databases:      

Please use a persistent id in citations: doi:10.1051/epjconf/201817901017  doi:10.3204/PUBDB-2019-00019

Report No.: DESY-18-007; MITP-18-001; arXiv:1801.04238

Abstract: We briefly review several activities at Mainz related to hadronic light-by-light scattering (HLbL) using lattice QCD. First we present a position-space approach to the HLbL contribution in the muon g-2, where we focus on exploratory studies of the pion-pole contribution in a simple model and the lepton loop in QED in the continuum and in infinite volume. The second part describes a lattice calculation of the double-virtual pion transition form factor $F_{pi^0 \gamma^* \gamma^*}(q_1^2, q_2^2)$ in the spacelike region with photon virtualities up to 1.5 GeV$^2$ which paves the way for a lattice calculation of the pion-pole contribution to HLbL. The third topic involves HLbL forward scattering amplitudes calculated in lattice QCD which can be described, using dispersion relations (HLbL sum rules), by $\gamma^* \gamma^* \to$ hadrons fusion cross sections and then compared with phenomenological models.

---

Contributing Institute(s):

1. NIC (ZEU-NIC)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2018

---

Database coverage:
; ; ; DOAJ Seal

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report/Contribution to a conference proceedings Asmussen, N. ; Gerardin, A. ; Green, J.DESY* ; Gryniuk, O. ; von Hippel, G. ; Meyer, H. B. ; Nyffeler, A. (Corresponding author) ; Pascalutsa, V. ; Wittig, H.
Hadronic light-by-light scattering contribution to the muon g-2 on the lattice
2018Workshop on Flavour changing and conserving processes, FCCP2017, Anacapri, Capri IslandAnacapri, Capri Island, Italy, 7 Sep 2017 - 9 Sep 20172017-09-072017-09-09 8 pp. (2018) [10.3204/PUBDB-2018-00802]2018     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---