Research Information System
ICHEP2022, Bologna, Italy, 06 July 2022, (Full Text)
The DsTau(NA65) experiment at CERN was proposed to study an inclusive differential cross-section of Ds production with a consecutive decay to tau lepton and tau neutrino in p-A interactions. A precise measurement of the tau neutrino cross-section allow us to search for new physics effects beyond Standard Model such as testing the Lepton Universality in neutrino interactions. The DsTau detector is based on nuclear emulsion providing a very high spatial resolution for the detection of short length and small "kink" decays. A high precision in vertex reconstruction allows to measure the proton interaction length and charged particle particle multiplicities in a high track density environment. The status of the experiment and results from the pilot run are
presented.