Two-Loop Renormalization-Group Evolution for the Nucleon Distribution Amplitude
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866917213714251776 |
|---|---|
| author | Huang, Yong-Kang Ji, Yao Shi, Bo-Xuan Wang, Yu-Ming |
| author_facet | Huang, Yong-Kang Ji, Yao Shi, Bo-Xuan Wang, Yu-Ming |
| contents | We determine for the first time the two-loop renormalization-group (RG) equation for the nucleon light-cone distribution amplitude, which constitutes the last missing ingredient for the complete next-to-leading-logarithmic corrections to the nucleon form factors in the hard-collinear factorization framework. Applying the conformal expansion for this fundamental nucleon distribution amplitude then enables us to construct an analytic solution that captures the desired scale dependence of phenomenologically interesting series coefficients. Importantly, the two-loop RG evolutions of these central hadronic quantities can bring about noticeable impacts on the corresponding leading-logarithmic results for three sample models of the nucleon distribution amplitude. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_20471 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Two-Loop Renormalization-Group Evolution for the Nucleon Distribution Amplitude Huang, Yong-Kang Ji, Yao Shi, Bo-Xuan Wang, Yu-Ming High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice We determine for the first time the two-loop renormalization-group (RG) equation for the nucleon light-cone distribution amplitude, which constitutes the last missing ingredient for the complete next-to-leading-logarithmic corrections to the nucleon form factors in the hard-collinear factorization framework. Applying the conformal expansion for this fundamental nucleon distribution amplitude then enables us to construct an analytic solution that captures the desired scale dependence of phenomenologically interesting series coefficients. Importantly, the two-loop RG evolutions of these central hadronic quantities can bring about noticeable impacts on the corresponding leading-logarithmic results for three sample models of the nucleon distribution amplitude. |
| title | Two-Loop Renormalization-Group Evolution for the Nucleon Distribution Amplitude |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2512.20471 |