Details

Autor(en) / Beteiligte

• Alharazin, H.
• Sun, B.-D.
• Epelbaum, E.
• Gegelia, J.
• Meißner, U.-G.

Titel

Gravitational p → ∆+ transition form factors in chiral perturbation theory

Ist Teil von

• The journal of high energy physics, 2024-03, Vol.2024 (3), p.7-17

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2024

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• A bstract The gravitational form factors of the transition from the proton to the ∆ + 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.