ULTIMATE SIGNED
Towards the ultimate dark matter detector
Total Cost €
0EC-Contrib. €
0Partnership
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0ULTIMATE project word cloud
Explore the words cloud of the ULTIMATE project. It provides you a very rough idea of what is the project "ULTIMATE" about.
Project "ULTIMATE" data sheet
The following table provides information about the project.
| Coordinator |
ALBERT-LUDWIGS-UNIVERSITAET FREIBURG
Organization address contact info |
| Coordinator Country | Germany [DE] |
| Total cost | 1˙982˙938 € |
| EC max contribution | 1˙982˙938 € (100%) |
| Programme |
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC)) |
| Code Call | ERC-2016-COG |
| Funding Scheme | ERC-COG |
| Starting year | 2017 |
| Duration (year-month-day) | from 2017-05-01 to 2022-04-30 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | ALBERT-LUDWIGS-UNIVERSITAET FREIBURG | DE (FREIBURG) | coordinator | 1˙982˙938.00 |
Map
Project objective
Dark matter is a major component of the Universe, outnumbering ordinary baryonic matter by a factor 5. As it has not yet been observed, its detection and subsequent characterization is one of the most important goals in particle physics. ULTIMATE will be the first project world-wide that focuses entirely on cutting-edge research towards the ultimate detector. Using a low-background time projection chamber (TPC) filled with ~40t of liquid xenon (LXe), this instrument will search for Galactic dark matter in the form of Weakly Interacting Massive Particles (WIMPs). It will probe the entire experimentally accessible parameter space above masses of a few GeV/c², which is eventually limited by irreducible neutrino backgrounds. If dark matter will be detected by the next-generation experiments, the ultimate detector will deliver a high statistics WIMP sample to study its properties.
To eventually propose and build this detector, which will be also sensitive to many non-WIMP science channels, various fundamental experimental challenges need to be solved now. These include a significant reduction of radioactive backgrounds, which would seriously limit the instrument's sensitivity, and structural aspects related to the TPC size of ~2.5m. ULTIMATE will tackle both, following several orthogonal strategies: Two novel TPC concepts will be developed and operated in LXe for the first time, to reduce background from 222Rn (hermetic TPC) and to optimize background rejection (single-phase TPC). Background neutrons and 222Rn emanation from the important material PTFE will be minimized by the identification of radio-pure PTFE, a systematic study of surface treatments, and by building a full-scale TPC mockup. Such prototype has not been constructed before and will enable detailed design, construction and assembly studies of a TPC with minimal material budget. The combination of all strategies explored in ULTIMATE will represent an optimal concept for the ultimate WIMP detector's TPC.
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2019 |
Marc Schumann Direct detection of WIMP dark matter: concepts and status published pages: 103003, ISSN: 0954-3899, DOI: 10.1088/1361-6471/ab2ea5 |
Journal of Physics G: Nuclear and Particle Physics 46/10 | 2020-01-28 |
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