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Gravitational $p \to \Delta^+ $ transition form factors in chiral perturbation theory

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arxiv 2312.05193 v2 pith:OXEICVXE submitted 2023-12-08 hep-ph nucl-th

H. Alharazin , B.-D. Sun , E. Epelbaum , J. Gegelia , U.-G. Mei{ss}ner This is my paper · ORCID
classification hep-phnucl-th
keywords chiralfactorsformperturbationtheorytransitiondeltagravitational
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The gravitational form factors of the transition from the proton to the $\Delta^+$ 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.

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Cited by 6 Pith papers

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