First results of the ROSEBUD Dark Matter experiment
Abstract
Rare Objects SEarch with Bolometers UndergrounD) is an experiment which attempts to detect low mass Weak Interacting Massive Particles (WIMPs) 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.
Cite
@article{arxiv.astro-ph/0004292,
title = {First results of the ROSEBUD Dark Matter experiment},
author = {S. Cebrian and N. Coron and G. Dambier and E. Garcia and D. Gonzalez and I. G. Irastorza and J. Leblanc and P. de Marcillac and A. Morales and J. Morales and A. Ortiz de Solorzano and A. Peruzzi and J. Puimedon and M. L. Sarsa and S. Scopel and J. A. Villar},
journal= {arXiv preprint arXiv:astro-ph/0004292},
year = {2011}
}
Comments
14 pages, 8 figures, submitted to Astroparticle Physics