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.

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