Alvarado, F. and Di, A. and Alvarez-Ruso, L. and Leupold, S. (2024) Electroweak structure of the nucleon. Il nuovo cimento C, 47 (4). pp. 1-5. ISSN 1826-9885
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Abstract
The nucleon form factors (FFs) are studied in relativistic chiral perturbation theory (ChPT) in two flavors with explicit Δ(1232) degrees of freedom. For the electromagnetic isovector form factors we also employ dispersion theory to account for ρ-dominated isovector ππ interaction and its quark-mass dependence in the t-channel nonperturbatively and beyond NLO in ChPT. With this framework we explore how LQCD data are described in both the Q2 and Mπ dimensions simultaneously. Furthermore, we have performed an NNLO calculation of the nucleon axial form factor, extracting relevant low-energy constants (LECs) from a combined set of recent LQCD results from different collaborations.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 23 Sep 2024 11:50 |
| Last Modified: | 23 Sep 2024 11:50 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23182 |
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