Speaker
Description
We present predictions for scattering observables and femtoscopic correlation functions (CFs) of the isotensor $\Sigma_c\pi$ and $\Sigma_b\pi$ systems within two theoretical approaches constrained to reproduce the $\Lambda_c(2595)$ and $\Lambda_b(5912)$ resonances. We compare the resulting scattering parameters and show that the differences between the models are mainly driven by their ultraviolet regularization schemes. Coulomb effects are included for the charged $\Sigma_c^{++}\pi^+$ and $\Sigma_b^+\pi^+$ channels, while the neutral $\Sigma_c^{0}\pi^-$ system is governed solely by the strong interaction. The calculated CFs in the charm and bottom sectors exhibit similar global features, consistent with heavy-quark flavor symmetry. Although the strong-interaction CFs display clear sensitivity to the underlying theoretical description, the inclusion of Coulomb repulsion significantly suppresses this discriminating power in the charged channels. Consequently, the Coulomb-free $\Sigma_c^{0}\pi^-$ correlation function emerges as the most promising observable to constrain the strong interaction in the isotensor $\Sigma_c\pi$ system.