Colangelo, G. and El-Khadra, A. X. and Hoferichter, M. and Keshavarzi, A. and Lehner, C. and Stoffer, P. and Teubner, T. (2022) Data-driven evaluations of Euclidean windows to scrutinize hadronic vacuum polarization. PHYSICS LETTERS B, 833: 137313. ISSN 0370-2693, 1873-2445
Full text not available from this repository. (Request a copy)Abstract
In this paper, we discuss how windows in Euclidean time can be used to isolate the origin of potential conflicts between evaluations of the hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon in lattice QCD and from e(+)e(-)-> hadronscross-section data. We provide phenomenological comparison numbers evaluated from e(+)e(-)-> hadronsdata for the window quantities most commonly studied in lattice QCD, complete with the correlations among them. We discuss and evaluate modifications of window parameters that could be useful in dissecting the energy dependence of tensions in the HVP integral and emphasize that further optimizations require a precise knowledge of the full covariance matrix in lattice-QCD calculations as well. (C) 2022 The Author(s). Published by Elsevier B.V.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ANOMALOUS MAGNETIC-MOMENT; PI(+)PI(-) CROSS-SECTION; PROCESS E(+) E(-); PION FORM-FACTOR; ENERGY-RANGE; CMD-2 DETECTOR; R-UDS; ANNIHILATION; UPDATE |
| Subjects: | 500 Science > 520 Astronomy & allied sciences 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jan 2024 12:08 |
| Last Modified: | 26 Jan 2024 12:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58420 |
Actions (login required)
 |
View Item |
