Microscopic parametrization of the near threshold oscillations of the nucleon time-like effective electromagnetic form factors
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866911951691448320 |
|---|---|
| author | Rosini, Francesco Pacetti, Simone Shekhovtsova, Olga Tomasi-Gustafsson, Egle |
| author_facet | Rosini, Francesco Pacetti, Simone Shekhovtsova, Olga Tomasi-Gustafsson, Egle |
| contents | We present an analysis of the recent near threshold BESIII data for the nucleon time-like effective form factors. The damped oscillation emerging from the subtraction of the dipole formula is treated in non-perturbative-QCD, making use of the light cone distribution amplitudes expansion. Non-perturbative effects are accounted for by considering Q2-dependent coefficients in such expansions, whose free parameters are determined by fitting to the proton and neutron data. Possible implications and future analysis have been discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_02916 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Microscopic parametrization of the near threshold oscillations of the nucleon time-like effective electromagnetic form factors Rosini, Francesco Pacetti, Simone Shekhovtsova, Olga Tomasi-Gustafsson, Egle High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory We present an analysis of the recent near threshold BESIII data for the nucleon time-like effective form factors. The damped oscillation emerging from the subtraction of the dipole formula is treated in non-perturbative-QCD, making use of the light cone distribution amplitudes expansion. Non-perturbative effects are accounted for by considering Q2-dependent coefficients in such expansions, whose free parameters are determined by fitting to the proton and neutron data. Possible implications and future analysis have been discussed. |
| title | Microscopic parametrization of the near threshold oscillations of the nucleon time-like effective electromagnetic form factors |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2403.02916 |