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ULTIMATE SIGNED

Towards the ultimate dark matter detector

Total Cost €

0

EC-Contrib. €

0

Partnership

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 ULTIMATE 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.

detection    galactic    mockup    neutrino    massive    sensitive    operated    lxe    40t    prototype    filled    neutrons    orthogonal    strategies    search    solved    generation    minimal    edge    radioactive    sup2    building    optimize    world    tpc    sensitivity    form    construction    tackle    2    science    goals    xenon    fundamental    entirely    reduce    pure    instrument    wimps    explored    time    projection    accessible    experiments    full    treatments    detected    characterization    background    liquid    emanation    channels    baryonic    interacting    subsequent    masses    universe    ultimate    combination    detector    surface    few    chamber    experimentally    gev    cutting    particle    wimp    hermetic    222rn    assembly    dark    first    rejection    minimized    particles    entire    size    constructed    optimal    systematic    limit    backgrounds    limited    radio    budget    ptfe    identification    outnumbering    experimental    single    5m    material    physics    statistics    structural    irreducible    space    probe    ordinary    seriously   

Project "ULTIMATE" data sheet

The following table provides information about the project.

Coordinator		 ALBERT-LUDWIGS-UNIVERSITAET FREIBURG 

Organization address
address: FAHNENBERGPLATZ
city: FREIBURG
postcode: 79098
website: www.uni-freiburg.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.
 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.

# participants  country  role  EC contrib. [€] 
1    ALBERT-LUDWIGS-UNIVERSITAET FREIBURG DE (FREIBURG) coordinator 1˙982˙938.00

Map

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 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
List of publications.
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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The information about "ULTIMATE" are provided by the European Opendata Portal: CORDIS opendata.

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