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

Abstract

The proton to ${\Delta }^{+}$ resonance transitional gravitational form factors are calculated to leading one-loop order using chiral perturbation theory in our recent work [1]. We take into account the leading electromagnetic and strong isospin-violating effects to obtain non-vanishing contributions. 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. Our results involve no free parameters and can be regarded as predictions of chiral perturbation theory.

Comments: Proceedings of the 11th International Workshop on Chiral Dynamics (CD2024)