Tests of Three-Flavor Chiral Perturbation Theory
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866909912470126592 |
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| author | Moinester, Murray |
| author_facet | Moinester, Murray |
| contents | We review experimental tests of three-flavor (u,d,s) chiral perturbation theory (ChPT). These include measurements of pion and kaon polarizabilities, the chiral anomaly amplitudes for processes such as $γ\rightarrow πππ$, $γ\rightarrow ππη$, and $γ\rightarrow KKπ$; as well as the lifetimes of the neutral pion and eta. These observables are extracted primarily through ultra-peripheral Primakoff scattering of high-energy particles from virtual photons in the Coulomb field of nuclei. Comparing data to two-flavor and three-flavor predictions allows us to evaluate how well ChPT describes light meson dynamics and the role of the strange quark in spontaneous chiral symmetry breaking. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_03669 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tests of Three-Flavor Chiral Perturbation Theory Moinester, Murray High Energy Physics - Phenomenology High Energy Physics - Experiment We review experimental tests of three-flavor (u,d,s) chiral perturbation theory (ChPT). These include measurements of pion and kaon polarizabilities, the chiral anomaly amplitudes for processes such as $γ\rightarrow πππ$, $γ\rightarrow ππη$, and $γ\rightarrow KKπ$; as well as the lifetimes of the neutral pion and eta. These observables are extracted primarily through ultra-peripheral Primakoff scattering of high-energy particles from virtual photons in the Coulomb field of nuclei. Comparing data to two-flavor and three-flavor predictions allows us to evaluate how well ChPT describes light meson dynamics and the role of the strange quark in spontaneous chiral symmetry breaking. |
| title | Tests of Three-Flavor Chiral Perturbation Theory |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2412.03669 |