A study of charge symmetry breaking effects in elastic π±d scattering

We computed external and internal Coulomb distortions as well as strong charge symmetry breaking (CSB) effects in π^±d→ π^±d. Available data for T_π = 143 MeV indicate the presence of CSB on the level of observed and deduced parameters for different Δ-isobars and the pn mass difference. Data for $\text{T}{}_{\mathrm{\pi }}\text{1}\text{?}\text{80}\text{MeV}$ are predicted to better suit the extraction of a measure of charge symmetry breaking. This note also contains a critical analysis of a previous study of CSB effects on σ_πd^tot.