Study of tau-neutrino production with a nanometre-precision tracker
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- Ariga Tomoko
- Principal Investigator
- 九州大学
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- 小松 雅宏
- Co-Investigator
- 名古屋大学
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- 佐藤 修
- Co-Investigator
- 名古屋大学
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- 吉田 純也
- Co-Investigator
- 東北大学
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- 吉本 雅浩
- Co-Investigator
- 国立研究開発法人理化学研究所
About this project
- Japan Grant Number
- JP18KK0085
- Funding Program
- Grants-in-Aid for Scientific Research
- Funding organization
- Japan Society for the Promotion of Science
- Project/Area Number
- 18KK0085
- Research Category
- Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
- Allocation Type
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- Multi-year Fund
- Review Section / Research Field
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- Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
- Research Institution
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- Kyushu University
- Project Period (FY)
- 2018-10-09 〜 2023-03-31
- Project Status
- Completed
- Budget Amount*help
- 16,770,000 Yen (Direct Cost: 12,900,000 Yen Indirect Cost: 3,870,000 Yen)
Research Abstract
A precise measurement of the tau neutrino cross section would enable a search for new physics effects, such as testing the Lepton Universality of Standard Model in neutrino interactions. The largest uncertainty in such cross-section measurements is due to a lack of data on the tau neutrino production or Ds differential production. We aim to measure an inclusive differential cross-section of Ds production in p-A interactions, detecting consecutive Ds to tau lepton to X decays which are the source of tau neutrinos. We formed an international collaboration for this research. We designed and produced the detector based on the nuclear emulsion, providing a sub-micron spatial resolution for the detection of short-length and small kink decays, such as Ds to tau to X decays. We successfully performed the beam-exposure experiments at CERN in 2021 and 2022 and are progressing with the analysis.
Keywords
Details 詳細情報について
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- CRID
- 1040282256983213824
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- Text Lang
- ja
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- Data Source
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- KAKEN
