First results of the ROSEBUD dark matter experiment

被引：40

作者：

Cebrián, S

Coron, N

Dambier, G

García, E

González, D

Irastorza, IG

Leblanc, J

de Marcillac, P

Morales, A

Morales, J

de Solórzano, AO

Peruzzi, A

Puimedón, J

Sarsa, ML

Scopel, S

Villar, JA

机构：

[1] Univ Zaragoza, Fac Ciencias, Lab Fis Nuc & Atlas Energias, E-50009 Zaragoza, Spain

[2] Inst Astrophys Spatiale, F-91405 Orsay, France

来源：

ASTROPARTICLE PHYSICS | 2001年 / 15卷 / 01期

关键词：

dark matter; weak interacting massive particles; underground detectors; bolometers;

D O I：

10.1016/S0927-6505(00)00138-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

ROSEBUD (Rare Objects SEarch with Bolometers UndergrounD) is an experiment which attempts to detect low mass weak interacting massive particles through their elastic scattering off Al and O nuclei. It consists of three small sapphire bolometers (of a total mass of 100 g) with NTD-Ge sensors in a dilution refrigerator operating at 20 mK in the Canfranc Underground Laboratory. We report in this paper the results of several runs (of about 10 days each) with successively improved energy thresholds, and the progressive background reduction obtained by improvement of the radiopurity of the components and subsequent modifications in the experimental assembly, including the addition of old lead shields. Mid-term plans and perspectives of the experiment are also presented. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：79 / 85

页数：7

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