Dark matter spin-dependent limits for WIMP interactions on F-19 by PICASSO

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F09%3A00164117" target="_blank" >RIV/68407700:21670/09:00164117 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Dark matter spin-dependent limits for WIMP interactions on F-19 by PICASSO

Popis výsledku v původním jazyce

The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on F-19 using the Superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target masses of F-19 of 65 g and 69 g respectively and a total exposure of 13.75 +/- 0.48 kgd. No dark matter signal was found and for WIMP masses around 24 GeV/c(2) new limits have been obtained on the spin-dependent cross section on F-19 of sigma(F) = 13.9 pb (90% C.L.) which can be converted into cross section limits on protons and neutrons of sigma(p) = 0.16 pb and sigma(n) = 2.60 pb respectively (90%C.L.). The obtained limits on protons restrict recent interpretations of the DAMA/LIBRA annual modulations in terms of spin-dependent interactions.

Název v anglickém jazyce

Dark matter spin-dependent limits for WIMP interactions on F-19 by PICASSO

Popis výsledku anglicky

The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on F-19 using the Superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target masses of F-19 of 65 g and 69 g respectively and a total exposure of 13.75 +/- 0.48 kgd. No dark matter signal was found and for WIMP masses around 24 GeV/c(2) new limits have been obtained on the spin-dependent cross section on F-19 of sigma(F) = 13.9 pb (90% C.L.) which can be converted into cross section limits on protons and neutrons of sigma(p) = 0.16 pb and sigma(n) = 2.60 pb respectively (90%C.L.). The obtained limits on protons restrict recent interpretations of the DAMA/LIBRA annual modulations in terms of spin-dependent interactions.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Physics Letters B

ISSN

0370-2693

e-ISSN

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Svazek periodika

682

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000272607400004

EID výsledku v databázi Scopus

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