| Scientific Committee Paper | |
| Report number | arXiv:1708.08700 ; CERN-SPSC-2017-029 ; SPSC-P-354 ; SPSC-P-354 |
| Title | Study of tau-neutrino production at the CERN SPS |
| Project Manager/Technical Coordinator | Ariga, Tomoko |
| Author(s) |
Aoki, S. (Kobe U.) ; Ariga, A. (U. Bern, AEC ; Bern U., LHEP) ; Ariga, T. (U. Bern, AEC ; Bern U., LHEP ; Kyushu U., Fukuoka (main)) ; Firu, E. (Bucharest, Inst. Space Science) ; Fukuda, T. (Nagoya U.) ; Gornushkin, Y. (Dubna, JINR) ; Guler, A.M. (Middle East Tech. U., Ankara) ; Haiduc, M. (Bucharest, Inst. Space Science) ; Kodama, K. (Aichi U. of Education) ; Korkmaz, M.A. (Middle East Tech. U., Ankara) ; Kose, U. (CERN) ; Nakamura, M. (Nagoya U.) ; Nakano, T. (Nagoya U.) ; Neagu, A.T. (Bucharest, Inst. Space Science) ; Rokujo, H. (Nagoya U.) ; Sato, O. (Nagoya U.) ; Vasina, S. (Dubna, JINR) ; Vladymyrov, M. (Bern U., LHEP ; U. Bern, AEC) ; Yoshimoto, M. (Gifu U.) |
| Corporate author(s) | CERN. Geneva. SPS and PS Experiments Committee ; SPSC |
| Series | (Proposal) |
| Note | CERN-SPSC-2017-029 (SPSC-P-354) |
| Submitted by | [email protected] on 29 Aug 2017 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN SPS CERN SPS |
| Abstract | The DsTau project proposes to study tau-neutrino production in high-energy proton interactions. The outcome of this experiment are prerequisite for measuring the $\nu_\tau$ charged-current cross section that has never been well measured. Precisely measuring the cross section would enable testing of lepton universality in $\nu_\tau$ scattering and it also has practical implications for neutrino oscillation experiments and high-energy astrophysical $\nu_\tau$ observations. $D_s$ mesons, the source of tau neutrinos, following high-energy proton interactions will be studied by a novel approach to detect the double-kink topology of the decays $D_s \rightarrow \tau\nu_\tau$ and $\tau\rightarrow\nu_\tau X$. Directly measuring $D_s\rightarrow \tau$ decays will provide an inclusive measurement of the $D_s$ production rate and decay branching ratio to $\tau$. The momentum reconstruction of $D_s$ will be performed by combining topological variables. This project aims to detect 1,000 $D_s \rightarrow \tau$ decays in $2.3 \times 10^8$ proton interactions in tungsten target to study the differential production cross section of $D_s$ mesons. To achieve this, state-of-the-art emulsion detectors with a nanometric-precision readout will be used. The data generated by this project will enable the $\nu_\tau$ cross section from DONUT to be re-evaluated, and this should significantly reduce the total systematic uncertainty. Furthermore, these results will provide essential data for future $\nu_\tau$ experiments such as the $\nu_\tau$ program in the SHiP project at CERN. In addition, the analysis of $2.3 \times 10^8$ proton interactions, combined with the expected high yield of $10^5$ charmed decays as by-products, will enable the extraction of additional physical quantities. |
| Copyright/License | arXiv nonexclusive-distrib. 1.0, CC-BY-4.0 |
Corresponding record in: Inspire
Email contact(s) : [email protected] ; [email protected]
Element opprettet 2017-08-29, sist endret 2022-01-15
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