The SHiP Experiment: Search for New Physics in Neutrino Sector

One of the most perspective projects in the field of physics of elementary particles is the new experiment SHiP (Search for Hidden Particles) on the accelerator of SPS (Super Proton Synchrotron) in CERN. In the SHiP experiment the bunch of protons with energy of 400 GeV/s will be dumped from the SPS accelerator on molybdenum — tungsten target for the purpose of accumulation of statistics of interactions of 2×1020 protons on a target within 5 years of work. In this experiment it is supposed to carry out search of very poorly interacting neutral particles outside Standard model, or particles of so-called New physics (heavy neutral leptons, axion, “dark photons”) which as it is supposed, can be responsible for such experimentally established facts as baryon asymmetry of the Universe, nonzero mass of a neutrino, dark matter, etc. At the same time, in an experiment the extensive program of researches on neutrino physics is planned, in particular, the first direct experimental observation of an anti-tau-neutrino, only particle of Standard model which still was not registered is supposed. Search of the right partners of a neutrino whose existence is strongly motivated by the theory as allows to explain experimentally established facts which now are not keeping within a framework of Standard model is of special interest. Researches in the field of physics of a tau-neutrino, the least studied field of neutrino physics, studying of the birth of charm particles, search of signals from interactions with particles of light dark matter will be conducted by means of the neutrino detector where as a basic element the relativistic nuclear emulsion is used. Special magnets are developed for the detector SHiP which use will allow to distinguish birth cases τ+ and τ−, and thus directly to register the birth of an anti-tau-neutrino in the emulsion detector.