Search for Majoron-emitting modes of double-beta decay of \(^{136}\)Xe with EXO-200

• Published in: arXiv.org 2014-11
• Main Authors: EXO-200 Collaboration, Albert, J B, Auty, D J, Barbeau, P S, Beauchamp, E, Beck, D, Belov, V, Benitez-Medina, C, Breidenbach, M, Brunner, T, Burenkov, A, Cao, G F, Chambers, C, Chaves, J, Cleveland, B, Coon, M, Craycraft, A, Daniels, T, Danilov, M, Daugherty, S J, Davis, C G, Davis, J, DeVoe, R, Delaquis, S, Didberidze, T, Dolgolenko, A, Dolinski, M J, Dunford, M, Fairbank, W, Farine, J, Feldmeier, W, Fierlinger, P, Fudenberg, D, Giroux, G, Gornea, R, Graham, K, Gratta, G, Hall, C, Herrin, S, Hughes, M, Jewell, M J, Jiang, X S, Johnson, A, Johnson, T N, Johnston, S, Karelin, A, Kaufman, L J, Killick, R, Koffas, T, Kravitz, S, Kuchenkov, A, Kumar, K S, Leonard, D S, Leonard, F, Licciardi, C, Lin, Y H, Ling, J, MacLellan, R, Marino, M G, Mong, B, Moore, D, Nelson, R, Odian, A, Ostrovskiy, I, Ouellet, C, Piepke, A, Pocar, A, Prescott, C Y, Rivas, A, Rowson, P C, Rozo, M P, Russell, J J, Schubert, A, Sinclair, D, Smith, E, Stekhanov, V, Tarka, M, Tolba, T, Tosi, D, Tsang, R, Twelker, K, Vogel, P, J -L Vuilleumier, Waite, A, Walton, J, Walton, T, Weber, M, Wen, L J, Wichoski, U, Yang, L, Y -R Yen, O Ya Zeldovich
• Format: Article
• Language: English
• Subjects: Beta decay; Neutrinos; Searching; Xenon
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1409.6829

EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless double-beta decay of \(^{136}\)Xe. Here we report on a search for various Majoron-emitting modes based on 100 kg\(\cdot\)yr exposure of \(^{136}\)Xe. A lower limit of \(T^{^{136}Xe}_{1/2} >1.2 \cdot 10^{24}\) yr at 90% C.L. on the half-life of the spectral index = 1 Majoron decay was obtained, corresponding to a constraint on the Majoron-neutrino coupling constant of \(|< g^{M}_{ee} >|