Learning about the chiral structure of the proton from the hyperfine splitting
| dc.creator | Pineda, Antonio | |
| dc.date | 2003-08-19 | |
| dc.date.accessioned | 2026-07-07T03:50:26Z | |
| dc.date.available | 2026-07-07T03:50:26Z | |
| dc.description | The complete analytical $O(m_l^3α^5/m_p^2\times (\log{m_π}, \logΔ, \log{m_l}))$ contribution to the Hyperfine splitting is given. It can explain about 2/3 of the difference between experiment and the pure QED prediction when setting the renormalization scale at the $ρ$ mass. The suppression of the polarizability piece with respect the Zemach one seems to be, to a large extent, a numerical accident. We give an estimate of the matching coefficient of the spin-dependent proton-lepton operator in heavy baryon effective theory. | |
| dc.description | 3 pages, 2 figures. Contribution to the 17th International IUPAP Conference on Few-body Problems in Physics, June 5-10, 2003 Durham, North Carolina, USA | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0308193 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0308193 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42770 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.subject | Atomic Physics | |
| dc.title | Learning about the chiral structure of the proton from the hyperfine splitting | |
| dc.type | text |