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20 April 2024

» arxiv » 0907.4054

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NEXT, a HPGXe TPC for neutrinoless double beta decay searches
NEXT Collaboration ; F. Granena ; T. Lux ; F. Nova ; J. Rico ; F. Sanchez ; D.R. Nygren ; J.A.S. Barata ; F.I.G.M. Borges ; C.A.N. Conde ; T.H.V.T. Dias ; L.M.P. Fernandes ; E.D.C. Freitas ; J.A.M. Lopes ; C.M.B. Monteiro ; J.M.F. dos Santos ; F.P. Santos ; L.M.N. Tavora ; J.F.C.A. Veloso ; E. Calvo ; I. Gil-Botella ; P. Novella ; C. Palomares ; A. Verdugo ; I. Giomataris ; E. Ferrer-Ribas ; J.A. Hernando-Morata ; D. Martinez ; X. Cid ; M. Ball ; S. Carcel ; A. Cervera ; J. Diaz ; A. Gil ; J.J. Gomez-Cadenas ; J. Martin-Albo ; F. Monrabal ; J. Munoz-Vidal ; L. Serra ; M. Sorel ; N. Yahlali ; R. Esteve Bosch ; C.W. Lerche ; J.D. Martinez ; F.J. Mora ; A. Sebastia ; A. Tarazona ; J.F. Toledo ; M. Lazaro ; J.L. Perez ; L. Ripoll ; J.M. Carmona ; S. Cebrian ; T. Dafni ; J. Galan ; H. Gomez ; F.J. Iguaz ; I.G. Irastorza ; G. Luzon ; J. Morales ; A. Rodriguez ; J. Ruz ; A. Tomas ; J.A. Villar ;
Date:	23 Jul 2009
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.
Source:	arXiv, 0907.4054
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