Gravitational $p \to Δ^+ $ transition form factors in chiral perturbation theory
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866914686868389888 |
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| author | Alharazin, H. Sun, B. -D. Epelbaum, E. Gegelia, J. Meißner, U. -G. |
| author_facet | Alharazin, H. Sun, B. -D. Epelbaum, E. Gegelia, J. Meißner, U. -G. |
| contents | The gravitational form factors of the transition from the proton to the $Δ^+$ resonance are calculated to leading one-loop order using a manifestly Lorentz-invariant formulation of chiral perturbation theory. We take into account the leading electromagnetic and strong isospin-violating effects. The loop contributions to the transition form factors are found to be free of power-counting violating pieces, which is consistent with the absence of tree-level diagrams at the considered order. In this sense, our results can be regarded as predictions of chiral perturbation theory. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2312_05193 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Gravitational $p \to Δ^+ $ transition form factors in chiral perturbation theory Alharazin, H. Sun, B. -D. Epelbaum, E. Gegelia, J. Meißner, U. -G. High Energy Physics - Phenomenology Nuclear Theory The gravitational form factors of the transition from the proton to the $Δ^+$ resonance are calculated to leading one-loop order using a manifestly Lorentz-invariant formulation of chiral perturbation theory. We take into account the leading electromagnetic and strong isospin-violating effects. The loop contributions to the transition form factors are found to be free of power-counting violating pieces, which is consistent with the absence of tree-level diagrams at the considered order. In this sense, our results can be regarded as predictions of chiral perturbation theory. |
| title | Gravitational $p \to Δ^+ $ transition form factors in chiral perturbation theory |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2312.05193 |