Unveiling the inner structure of the pion first excited state
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912203250073600 |
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| author | Wang, Xiaobin Chang, Lei |
| author_facet | Wang, Xiaobin Chang, Lei |
| contents | By capturing the characteristics of the Bethe-Salpeter amplitude for the pion excitation state, we construct an algebraic model to provide the overall features of the pion first excitation state parton distribution amplitude and distribution function. We find that, at the hadronic scale, the distribution amplitude of the excited state exhibits nodes, while the distribution function is unimodal, with a peak at $x=1/2$ and distinct concave and convex fluctuations in the valence region. These findings provide new insights into the partonic structure of excited mesons and contribute significantly to our understanding of hadronic excitations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_03602 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Unveiling the inner structure of the pion first excited state Wang, Xiaobin Chang, Lei High Energy Physics - Phenomenology By capturing the characteristics of the Bethe-Salpeter amplitude for the pion excitation state, we construct an algebraic model to provide the overall features of the pion first excitation state parton distribution amplitude and distribution function. We find that, at the hadronic scale, the distribution amplitude of the excited state exhibits nodes, while the distribution function is unimodal, with a peak at $x=1/2$ and distinct concave and convex fluctuations in the valence region. These findings provide new insights into the partonic structure of excited mesons and contribute significantly to our understanding of hadronic excitations. |
| title | Unveiling the inner structure of the pion first excited state |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.03602 |