A modification of the one boson exchange (OBE) kernel for covariant spectator theory (CST) is presented and discussed. When applied to scattering two identical particles, previously used kernels either introduced spurious singularities, or removed them in an ad-hoc way. The new not only removes these but also maintains convergence two-body CST equation (sometimes called Gross equation) when des...

Recently Díaz, Hössjer and Marks (DHM) presented a Bayesian framework to measure cosmological tuning (either fine or coarse) that uses maximum entropy (maxent) distributions on unbounded sample spaces as priors for the parameters of physical models ( https://doi.org/10.1088/1475-7516/2021/07/020 ). The DHM stands in contrast previous attempts rely uniform prior assumption. However, since often ...