Stoffer, P. and Colangelo, G. and Hoferichter, M. and Procura, M. (2015) Hadronic light-by-light scattering and the muon g −2. Il nuovo cimento C, 38 (4). pp. 1-6. ISSN 1826-9885
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Abstract
The largest uncertainties in the Standard Model calculation of the anomalous magnetic moment of the muon (g − 2)μ come from hadronic contributions. In particular, it can be expected that in a few years the subleading hadronic light-by-light (HLbL) contribution will dominate the theory uncertainty. We present a dispersive description of the HLbL tensor, which is based on unitarity, analyticity, crossing symmetry, and gauge invariance. Such a model-independent approach opens up an avenue towards a data-driven determination of the HLbL contribution to the (g − 2)μ.
| Item Type: | Article |
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| Uncontrolled Keywords: | Dispersion relations; Electric and magnetic moments; Meson-meson interactions |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 16 Jun 2020 07:43 |
| Last Modified: | 16 Jun 2020 07:43 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19121 |
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