NEXT, a HPGXe TPC for neutrinoless double beta decay searches
Abstract
We propose a novel detection concept for neutrinoless double-beta decay searches. This concept is based on a Time Projection Chamber (TPC) filled with high-pressure gaseous xenon, and with separated-function capabilities for calorimetry and tracking. Thanks to its excellent energy resolution, together with its powerful background rejection provided by the distinct double-beta decay topological signature, the design discussed in this Letter Of Intent promises to be competitive and possibly out-perform existing proposals for next-generation neutrinoless double-beta decay experiments. We discuss the detection principles, design specifications, physics potential and R&D plans to construct a detector with 100 kg fiducial mass in the double-beta decay emitting isotope Xe(136), to be installed in the Canfranc Underground Laboratory.
- Publication:
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arXiv e-prints
- Pub Date:
- July 2009
- DOI:
- 10.48550/arXiv.0907.4054
- arXiv:
- arXiv:0907.4054
- Bibcode:
- 2009arXiv0907.4054T
- Keywords:
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- High Energy Physics - Experiment;
- Nuclear Experiment;
- Physics - Instrumentation and Detectors
- E-Print:
- Letter of Intent to the LSC Scientific Committee 115 pages