Addendum to the UA9 status report for 2017

The activity of the UA9 Collaboration from 17 October 2017 onwards is presented hereafter, in view of supplementing the UA9 report for 2017. Two new items are shortly reported: 1) the progress of the so-called “double-crystal experiment”, aiming at the measurement of the electric and magnetic dipole moments (EDM and MDM respectively) of the heavy baryons in LHC and 2) the first double-crystal test in the SPS in view of demonstrating the feasibility of such a sophisticated beam manipulation in more relaxed conditions than in LHC. The new results strongly support the UA9 request of beam time in the SPS and in H8 for 2018 and represent a relevant step towards a sound formulation of a double-crystal experiment in LHC.