Collisions of particles prepared in non--plane-wave states with a non-trivial phase structure, such as vortex carrying an adjustable orbital angular momentum (OAM), open novel opportunities atomic, nuclear, and high-energy physics unavailable for traditional scattering experiments. Recently, it was argued that photoinduced processes $\gamma d \to pn$ p \Delta^+$ initiated by photon should displ...

We present supremum Lagrange Multiplier tests to compare a linear ARMA specification against its threshold extension. derive the asymptotic distribution of test statistics both under null hypothesis and contiguous local alternatives. Moreover, we prove consistency tests. The Monte Carlo study shows that enjoy good finite-sample properties, are robust model mis-specification their performance is...