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20 April 2024

» arxiv » hep-ex/0101037

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Particle Dark Matter and Solar Axion Searches with a small germanium detector at the Canfranc Underground Laboratory
A. Morales ; F. T. Avignone III ; R. L. Brodzinski ; S. Cebrian ; E. Garcia ; D. Gonzalez ; I. G. Irastorza ; H. S. Miley ; J. Morales ; A. Ortiz de Solorzano ; J. Puimedon ; J. H. Reeves ; M. L. Sarsa ; S. Scopel ; J. A. Villar ;
Date:	22 Dec 2000
Journal:	Astropart.Phys. 16 (2002) 325-332
Subject:	hep-ex astro-ph
Abstract:	A small, natural abundance, germanium detector (COSME) has been operating recently at the Canfranc Underground Laboratory (Spanish Pyrenees) in improved conditions of shielding and overburden with respect to a previous operation of the same detector. An exposure of 72.7 kg day in these conditions has at present a background improvement of about one order of magnitude compared to the former operation of the detector. These new data have been applied to a direct search for WIMPs and solar axions. New WIMP exclusion plots improving the current bounds for low masses are reported. The paper also presents a limit on the axion-photon coupling obtained from the analysis of the data looking for a Primakoff axion-to-photon conversion and Bragg scattering inside the crystal.
Source:	arXiv, hep-ex/0101037
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