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Article
Report number arXiv:2303.13070
Title Development of proton beam irradiation system for the NA65/DsTau experiment
Author(s)

Aoki, Shigeki (Kobe U.) ; Ariga, Akitaka (Chiba U. ; Bern U.) ; Ariga, Tomoko (Kyushu U.) ; Charitonidis, Nikolaos (CERN) ; Dmitrievsky, Sergey (Unlisted) ; Dobre, Radu (NILPRP, Bucharest ; Bucharest U.) ; Firu, Elena (NILPRP, Bucharest) ; Gornushkin, Yury (Unlisted) ; Guler, Ali Murat (Middle East Tech. U., Ankara) ; Hayakawa, Daiki (ETH, Zurich (main)) ; Kodama, Koichi (Aichi U. of Education) ; Komatsu, Masahiro (Nagoya U.) ; Kose, Umut (ETH, Zurich (main)) ; Miloi, Madalina Mihaela (Bucharest U. ; Unlisted) ; Miura, Manato (Chiba U.) ; Nakamura, Mitsuhiro (Nagoya U.) ; Nakano, Toshiyuki (Tohoku U. (main)) ; Neagu, Alina-Tania (NILPRP, Bucharest) ; Okumura, Toranosuke (Chiba U.) ; Oz, Canay (Middle East Tech. U., Ankara) ; Rokujo, Hiroki (Nagoya U.) ; Sato, Osamu (Nagoya U.) ; Vasina, Svetlana (Unlisted) ; Yoshida, Junya (Tohoku U. (main)) ; Yoshimoto, Masahiro (Nishina Ctr., RIKEN) ; Yuksel, Emin (Middle East Tech. U., Ankara)

Publication 2023-10-09
Imprint 2023-03-23
Number of pages 10
Note 10 pages, 16 figures
In: JINST 18 (2023) P10008
DOI 10.1088/1748-0221/18/10/P10008
Subject category physics.ins-det ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN SPS ; NA65
Abstract Tau neutrino is the least studied lepton of the Standard Model (SM). The NA65/DsTau experiment targets to investigate $D_s$, the parent particle of the $\nu_\tau$, using the nuclear emulsion-based detector and to decrease the systematic uncertainty of $\nu_\tau$ flux prediction from over 50% to 10% for future beam dump experiments. In the experiment, the emulsion detectors are exposed to the CERN SPS 400 GeV proton beam. To provide optimal conditions for the reconstruction of interactions, the protons are required to be uniformly distributed over the detector's surface with an average density of $10^5 \rm{cm^{-2}}$ and the fluctuation of less than 10%. To address this issue, we developed a new proton irradiation system called the target mover. The new target mover provided irradiation with a proton density of $0.98 \rm{cm^{-2}}$ and the density fluctuation of $2.0\pm 0.3$% in the DsTau 2021 run.
Copyright/License preprint: (License: CC BY 4.0)
publication: © 2023-2024 CERN (License: CC-BY-4.0)



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 Registre creat el 2023-08-04, darrera modificació el 2024-09-24


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