This review gives an update on virtual Compton scattering (VCS) off the nucleon, γ∗N→γN, in the low-energy regime. We recall the theoretical formalism related to the generalized polarizabilities (GPs) and model predictions for these observables. We present the GP extraction methods that are used in the experiments: the approach based on the low-energy theorem for VCS and the formalism of Dispersion Relations. We then review the experimental results, with a focus on the progress brought by recent experimental data on proton GPs, and we conclude by some perspectives in the field of VCS at low energy.
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Autori: | |
Titolo: | Virtual Compton scattering and nucleon generalized polarizabilities |
Autori: | Fonvieille, H.; Pasquini, B.; Sparveris, N. |
Presenza coautori internazionali: | sì |
Numero degli autori: | 3 |
Data di pubblicazione: | 2020 |
Rivista: | PROGRESS IN PARTICLE AND NUCLEAR PHYSICS |
IF: | si |
Codice identificativo Scopus: | 2-s2.0-85078227886 |
Revisione (peer review): | Esperti anonimi |
Lingua: | Inglese |
Rilevanza: | Internazionale |
Supporto: | STAMPA |
Pagina iniziale: | 103754 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.ppnp.2020.103754 |
Abstract: | This review gives an update on virtual Compton scattering (VCS) off the nucleon, γ∗N→γN, in the low-energy regime. We recall the theoretical formalism related to the generalized polarizabilities (GPs) and model predictions for these observables. We present the GP extraction methods that are used in the experiments: the approach based on the low-energy theorem for VCS and the formalism of Dispersion Relations. We then review the experimental results, with a focus on the progress brought by recent experimental data on proton GPs, and we conclude by some perspectives in the field of VCS at low energy. |
Parole Chiave: | Dispersion relations; Electromagnetic interactions; Generalized polarizabilities; Proton; Virtual Compton scattering |
Data di presentazione: | 2021-04-07T10:13:54Z |
Appare nelle tipologie: | 1.1 Articolo in rivista |