Final Analysis and Results of the Phase II SIMPLE Dark Matter Search
| Title: | Final Analysis and Results of the Phase II SIMPLE Dark Matter Search |
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| Authors: | Felizardo, M., Girard, T. A., Morlat, T., Fernandes, A. C., Ramos, A. R., Marques, J. G., Auguste, M., Boyer, D., Cavaillou, A., Poupeney, J., Sudre, C., Puibasset, J., Miley, H. S., Payne, R. F., Carvalho, F. P., Prudêncio, M. I., Marques, R. |
| Publication Year: | 2011 |
| Collection: | Astrophysics High Energy Physics - Experiment High Energy Physics - Phenomenology |
| Subject Terms: | Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology |
| More Details: | We report the final results of the Phase II SIMPLE measurements, comprising two run stages of 15 superheated droplet detectors each, the second stage including an improved neutron shielding. The analyses includes a refined signal analysis, and revised nucleation efficiency based on reanalysis of previously-reported monochromatic neutron irradiations. The combined results yield a contour minimum of \sigma_{p} = 4.2 x 10^-3 pb at 35 GeV/c^2 on the spin-dependent sector of WIMP-proton interactions, the most restrictive to date from a direct search experiment and overlapping for the first time results previously obtained only indirectly. In the spin-independent sector, a minimum of 3.6 x 10^-6 pb at 35 GeV/c^2 is achieved, with the exclusion contour challenging the recent CoGeNT region of current interest. Comment: revised, PRL-accepted version with slightly weakened limit contours |
| Document Type: | Working Paper |
| DOI: | 10.1103/PhysRevLett.108.201302 |
| Access URL: | http://arxiv.org/abs/1106.3014 |
| Accession Number: | edsarx.1106.3014 |
| Database: | arXiv |
| DOI: | 10.1103/PhysRevLett.108.201302 |
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