| Article | |
| Report number | arXiv:2301.08696 |
| Title | Update of Euclidean windows of the hadronic vacuum polarization |
| Related title | An update of Euclidean windows of the hadronic vacuum polarization |
| Author(s) |
Blum, T. (Connecticut U.) ; Boyle, P.A. (Brookhaven ; U. Edinburgh) ; Bruno, M. (Milan Bicocca U. ; INFN, Milan Bicocca) ; Giusti, D. (Regensburg U.) ; Gülpers, V. (U. Edinburgh) ; Hill, R.C. (U. Edinburgh) ; Izubuchi, T. (Brookhaven ; RIKEN BNL) ; Jang, Y.-C. (Brookhaven ; Columbia U. ; Columbia U., Astron. Astrophys.) ; Jin, L. (Connecticut U. ; RIKEN BNL) ; Jung, C. (Brookhaven) ; Jüttner, A. (CERN ; Southampton U.) ; Kelly, C. (Brookhaven Natl. Lab.) ; Lehner, C. (Regensburg U.) ; Matsumoto, N. (RIKEN BNL) ; Mawhinney, R.D. (Columbia U. ; Columbia U., Astron. Astrophys.) ; Meyer, A.S. (UC, Berkeley ; LBL, Berkeley ; Southern Denmark U., CP3-Origins) ; Tsang, J.T. (CERN ; U. Southern Denmark, Odense, DIAS) |
| Publication | 2023-09-01 |
| Imprint | 2023-01-20 |
| Number of pages | 24 |
| Note | 24 pages, 15 figures |
| In: | Phys. Rev. D 108 (2023) 054507 |
| DOI | 10.1103/PhysRevD.108.054507 (publication) |
| Subject category | hep-ph ; Particle Physics - Phenomenology ; hep-lat ; Particle Physics - Lattice |
| Abstract | We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional sub-leading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. We find $a_\mu^{\rm W} = 235.56(65)(50) \times 10^{-10}$, which is in $3.8\sigma$ tension with the recently published dispersive result of Colangelo et al., $a_\mu^{\rm W} = 229.4(1.4) \times 10^{-10}$, and in agreement with other recent lattice determinations. We also provide a result for the standard short-distance window. The results reported here are unchanged compared to our presentation at the Edinburgh workshop of the g-2 Theory Initiative in 2022. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2023-2024 authors (License: CC BY 4.0), sponsored by SCOAP³ |
Corresponding record in: Inspire
Δημιουργία εγγραφής 2023-02-07, τελευταία τροποποίηση 2024-08-17