Optimizing EDELWEISS detectors for low-mass WIMP searches

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90072%2F18%3A00344168" target="_blank" >RIV/68407700:90072/18:00344168 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.97.022003" target="_blank" >https://doi.org/10.1103/PhysRevD.97.022003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.97.022003" target="_blank" >10.1103/PhysRevD.97.022003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimizing EDELWEISS detectors for low-mass WIMP searches

Popis výsledku v původním jazyce

The physics potential of EDELWEISS detectors for the search of low-mass weakly interacting massive particles (WIMPs) is studied. Using a data-driven background model, projected exclusion limits are computed using frequentist and multivariate analysis approaches, namely, profile likelihood and boosted decision tree. Both current and achievable experimental performances are considered. The optimal strategy for detector optimization depends critically on whether the emphasis is put on WIMP masses below or above similar to 5 GeV/c(2). The projected sensitivity for the next phase of the EDELWEISS-III experiment at the Modane Underground Laboratory (LSM) for low-mass WIMP search is presented. By 2018 an upper limit on the spin-independent WIMP-nucleon cross section of sigma(SI) = 7 x 10-42 cm(2) is expected for a WIMP mass in the range 2-5 GeV/c(2). The requirements for a future hundred-kilogram-scale experiment designed to reach the bounds imposed by the coherent scattering of solar neutrinos are also described. By improving the ionization resolution down to 50 eV(ee), we show that such an experiment installed in an even lower background environment (e.g., at SNOLAB) together with an exposure of 1000 kg . yr, should allow us to observe about 80 B-8 neutrino events after discrimination.

Název v anglickém jazyce

Optimizing EDELWEISS detectors for low-mass WIMP searches

Popis výsledku anglicky

The physics potential of EDELWEISS detectors for the search of low-mass weakly interacting massive particles (WIMPs) is studied. Using a data-driven background model, projected exclusion limits are computed using frequentist and multivariate analysis approaches, namely, profile likelihood and boosted decision tree. Both current and achievable experimental performances are considered. The optimal strategy for detector optimization depends critically on whether the emphasis is put on WIMP masses below or above similar to 5 GeV/c(2). The projected sensitivity for the next phase of the EDELWEISS-III experiment at the Modane Underground Laboratory (LSM) for low-mass WIMP search is presented. By 2018 an upper limit on the spin-independent WIMP-nucleon cross section of sigma(SI) = 7 x 10-42 cm(2) is expected for a WIMP mass in the range 2-5 GeV/c(2). The requirements for a future hundred-kilogram-scale experiment designed to reach the bounds imposed by the coherent scattering of solar neutrinos are also described. By improving the ionization resolution down to 50 eV(ee), we show that such an experiment installed in an even lower background environment (e.g., at SNOLAB) together with an exposure of 1000 kg . yr, should allow us to observe about 80 B-8 neutrino events after discrimination.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

—

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

97

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

0-17

Kód UT WoS článku

000423128600001

EID výsledku v databázi Scopus

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