6 juin 2008
Institut de Physique Nucléaire de Lyon
Fuseau horaire Europe/Paris

BGO scintillating bolometer as dark matter detector prototype

6 juin 2008, 16:55
25m
Amphitéatre (Institut de Physique Nucléaire de Lyon)

Amphitéatre

Institut de Physique Nucléaire de Lyon

Campus de la Doua 4 rue Enrico Fermi F-69100 Villeurbanne

Orateur

M. Ysrael Richard Ortigoza Paredes (Universidad de Zaragoza)

Description

Properties of a 46 g BGO scintillating bolometer has been tested at 20 mK as a prototype for dark matter direct detection in the frame of the ROSEBUD (Rare Objects Search with Bolometers UndergrounD) collaboration. The bolometer has been operated in an ultralow background environment at the Canfranc Underground Laboratory (2450 m.w.e.). We analyze its response both in heat and light and its particle discrimination capability focusing on the discrimination of nuclear recoils (like those produced by hypothetical WIMPs) against electron recoils (produced by beta/gamma radioactive background).

Author

M. Ysrael Richard Ortigoza Paredes (Universidad de Zaragoza)

Co-auteurs

M. Alfonso Ortíz de Solórzano (Universidad de Zaragoza) M. Carlos Pobes (Universidad de Zaragoza) Dr Eduardo García (Universidad de Zaragoza) M. Jacques Leblanc (Institut d'Astrophysique spatiale IAS, Orsay) M. Johann Gironnet (Institut d'Astrophysique spatiale IAS, Orsay) Dr Jorge Puimedón (Universidad de Zaragoza) Dr José Ángel Villar Rivacoba (Universidad de Zaragoza) Mme Lidia Torres (Universidad de Zaragoza) Dr María Luisa Sarsa (Universidad de Zaragoza) Dr María Martínez (Universidad de Zaragoza) Dr Noël Coron (Institut d'Astrophysique spatiale IAS, Orsay) Dr Pierre de Marcillac (Institut d'Astrophysique spatiale IAS, Orsay) M. T. Redon (Institut d'Astrophysique spatiale IAS, Orsay)

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