The Korean Physical Society 06130 22, Teheran-ro 7-gil, Gangnam-gu, Seoul, Republic of Korea 610 Representation : Tae Won NOH TEL: 02-556-4737 FAX: 02-554-1643 E-mail : Copyright(C) KPS, All rights reserved.
30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

DsTau/NA65 Experiment at CERN-SPS

Not scheduled
Virtual Seoul

Virtual Seoul

Poster Accelerator neutrinos Poster


Toranosuke Okumura (Chiba University)


The DsTau/NA65 experiment aims to study 𝐷𝑠 → 𝜏 + 𝜈𝜏, 𝜏 → 𝑋 + 𝜈𝜏 differential production cross section in proton-tungsten interactions at CERN SPS. The emulsion detection technology is adopted to observe 𝐷𝑠 decays which have a small kink angle and a short flight length. The experiment will provide an independent ντ flux prediction for future neutrino beams with accuracy below 10%. Then, the systematic uncertainty of the ντ CC cross section measurement can be made sufficiently low to test LU in neutrino scattering. In 2021, the first physics run of the experiment was performed successfully. The collected data corresponds to 30% of the aimed total statistics. A target mover is designed and installed to the detector in order to have a uniform irradiation of the proton beam on the target surface. In this presentation, the performance of the target mover in 2021 run and the status of the experiment will be presented.

Collaboration DsTau/NA65 Coll.

Primary author

Presentation Materials