One-pion exchange potential in a strong magnetic field
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_ | 1866917367557128192 |
|---|---|
| author | Miura, Daiki Hongo, Masaru Taya, Hidetoshi Hatsuda, Tetsuo |
| author_facet | Miura, Daiki Hongo, Masaru Taya, Hidetoshi Hatsuda, Tetsuo |
| contents | We derive the one-pion exchange potential (OPEP) in the presence of a homogeneous magnetic field using chiral perturbation theory with nonrelativistic nucleons. Our approach is applicable not only to weak magnetic fields but also to strong ones up to around the pion-mass scale. The Green's function of charged pions is modified by the magnetic field, leading to changes in the nuclear force. By numerically evaluating the modified OPEP incorporating its spin and isospin dependencies, we show that the range of the potential decreases in both directions parallel and perpendicular to the magnetic field as the field strength increases. We also compute the resulting energy shift of the deuteron due to the modified OPEP, which can reach the order of 1 MeV around $|eB| = m_π^2$, which is comparable to the deuteron binding energy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_26544 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | One-pion exchange potential in a strong magnetic field Miura, Daiki Hongo, Masaru Taya, Hidetoshi Hatsuda, Tetsuo Nuclear Theory High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Experiment We derive the one-pion exchange potential (OPEP) in the presence of a homogeneous magnetic field using chiral perturbation theory with nonrelativistic nucleons. Our approach is applicable not only to weak magnetic fields but also to strong ones up to around the pion-mass scale. The Green's function of charged pions is modified by the magnetic field, leading to changes in the nuclear force. By numerically evaluating the modified OPEP incorporating its spin and isospin dependencies, we show that the range of the potential decreases in both directions parallel and perpendicular to the magnetic field as the field strength increases. We also compute the resulting energy shift of the deuteron due to the modified OPEP, which can reach the order of 1 MeV around $|eB| = m_π^2$, which is comparable to the deuteron binding energy. |
| title | One-pion exchange potential in a strong magnetic field |
| topic | Nuclear Theory High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2510.26544 |