Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Neutrino Physics
Study of tau-neutrino production at the CERN SPS
T. Ariga* on behalf of the DsTau Collaboration
*corresponding author
Full text: pdf
Published on: August 02, 2019
Abstract
Lepton universality in tau-neutrino ($\nu_\tau$) scattering has been poorly tested. More precise measurement of the $\nu_\tau$ cross section would enable a search for new physics effects in $\nu_\tau$-nucleon CC interactions. Such measurement also has practical importance for next-generation neutrino oscillation experiments and astrophysical $\nu_\tau$ observations. The DsTau project has been proposed at CERN SPS to study tau-neutrino production with the aim of providing important data for future $\nu_\tau$ measurements. For $\nu_\tau$ cross section measurements, the practical method of producing an artificial $\nu_\tau$ beam employs the sequential decay of $D_s$ mesons produced in high-energy proton interactions. However, there has been no experimental measurement of the $D_s$ differential production cross section in fixed-target experiments using proton beams, which leads to a large systematic uncertainty on the $\nu_\tau$ flux estimation. The DsTau project aims to reduce this uncertainty in the current cross section measurement from about 50% to 10% by measuring the $D_s$ differential production cross section. For this purpose, emulsion detectors with a 50-nm spatial resolution will allow the detection of $D_s \rightarrow \tau \rightarrow X$ double kinks in a few mm range. Results from the beam tests conducted in 2016-2017 are presented together with a prospect for the pilot run in 2018 and the physics run in 2021.
DOI: https://doi.org/10.22323/1.340.0240
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access