Study of tau-neutrino production at the CERN SPS (CERN-NA65)

The DsTau Experiment: A Study for Tau-Neutrino Production

Particles ◽

10.3390/particles3010013 ◽

2020 ◽

Vol 3 (1) ◽

pp. 164-168

Author(s):

Mădălina Mihaela Miloi ◽

Keyword(s):

Cross Section ◽

Present Report ◽

Neutrino Flux ◽

Interaction Cross Section ◽

Muon Neutrinos ◽

Tau Neutrino ◽

Neutrino Sector ◽

Neutrino Production ◽

Lepton Universality ◽

Tau Neutrinos

For clarifying the validity of the Lepton Universality hypothesis, one of the fundamental statements of the Standard Model, the interaction cross section for all three flavors of leptons have to be known with high precision. In neutrino sector, for electron and muon neutrinos, the interaction cross section is known fairly well, but for tau neutrino only poor estimations exist. In particular, the most direct measurement by the DONuT experiment was performed with rather poor accuracy due to low statistics and an uncertainty of the tau neutrino flux. The DsTau experiment proposes to study tau-neutrino production process and thus to improve significantly the accuracy of calculations of tau neutrino flux for neutrino accelerator experiments. To study reactions providing most of tau neutrinos, the experiment uses a setup based on high resolution nuclear emulsions, capable to register short lived particle decays created in proton-nucleus interactions. The present report is an overview of the DsTau experiment together with some of the preliminary results from the pilot run.

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Study of tau neutrino production property with measuring open-Charms at 400 GeV proton beam dump

10.22323/1.316.0228 ◽

2018 ◽

Author(s):

Osamu Sato ◽

Keyword(s):

Proton Beam ◽

Beam Dump ◽

Tau Neutrino ◽

Production Property ◽

Neutrino Production

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Study of Tau Neutrino Production in Proton Nucleus Interactions

Ukrainian Journal of Physics ◽

10.15407/ujpe64.7.577 ◽

2019 ◽

Vol 64 (7) ◽

pp. 577

Author(s):

Yu. Gornushkin

Keyword(s):

High Resolution ◽

Cross Section ◽

High Energy ◽

High Energy Proton ◽

Tau Neutrino ◽

Neutrino Production ◽

Tau Neutrinos ◽

Energy Proton ◽

First Results ◽

Particle Decays

In the DsTau experiment at the CERN SPS, an independent direct way to study the tau neutrino production in high energy proton-nucleous interactions was proposed. Since the main source of tau neutrinos is a decay of Ds mesons, the project aims at measuring the differential cross-section of this reaction. The experimental method is based on the use of high-resolution emulsion detectors for the efficient registration of events with short-lived particle decays. The motivation of the project, details of the experimental technique, and the first results of the analysis of the data collected during test runs, which prove the feasibility of the study are presented.

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