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arXiv · hep-ex/0302018

Pulse Shape Discrimination in the IGEX Experiment

D. Gonzalez·J. Morales·S. Cebrian·E. Garcia·I. G. Irastorza·A. Morales·A. Ortiz de Solorzano·J. Puimedon·M. L. Sarsa·J. A. Villar·C. E. Aalseth·F. T. Avignone III·R. L. Brodzinski·W. K. Hensley·H. S. Miley·J. H. Reeves·I. V. Kirpichnikov·A. A. Klimenko·S. B. Osetrov·A. A. Smolnikov·A. A. Vasenko·S. I. Vasiliev·V. S. Pogosov·A. G. Tamanyan
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Abstract

The IGEX experiment has been operating enriched germanium detectors in the Canfranc Underground Laboratory (Spain) in a search for the neutrinoless double decay of 76Ge. The implementation of Pulse Shape Discrimination techniques to reduce the radioactive background is described in detail. This analysis has been applied to a fraction of the IGEX data, leading to a rejection of ~60 % of their background, in the region of interest (from 2 to 2.5 MeV), down to ~0.09 c/(keV kg y).

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D. Gonzalez, J. Morales, S. Cebrian, E. Garcia, I. G. Irastorza, A. Morales, A. Ortiz de Solorzano, J. Puimedon, M. L. Sarsa, J. A. Villar, C. E. Aalseth, F. T. Avignone III, R. L. Brodzinski, W. K. Hensley, H. S. Miley, J. H. Reeves, I. V. Kirpichnikov, A. A. Klimenko, S. B. Osetrov, A. A. Smolnikov, A. A. Vasenko, S. I. Vasiliev, V. S. Pogosov, A. G. Tamanyan. 2003-02-14. Pulse Shape Discrimination in the IGEX Experiment. https://doi.org/10.1016/j.nima.2003.06.008

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