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ULTIMATE SIGNED

Towards the ultimate dark matter detector

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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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.

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

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

Leaflet | Map data © OpenStreetMap contributors, CC-BY-SA, Imagery © Mapbox

 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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