Search for neutrinoless double-beta decay in 136Xe with EXO-200.

Published

Journal Article

We report on a search for neutrinoless double-beta decay of 136Xe with EXO-200. No signal is observed for an exposure of 32.5 kg yr, with a background of ∼1.5×10(-3)  kg(-1) yr(-1)  keV(-1) in the ±1σ region of interest. This sets a lower limit on the half-life of the neutrinoless double-beta decay T(1/2)(0νββ)(136Xe)>1.6×10(25)  yr (90% C.L.), corresponding to effective Majorana masses of less than 140-380 meV, depending on the matrix element calculation.

Full Text

Duke Authors

Cited Authors

  • Auger, M; Auty, DJ; Barbeau, PS; Beauchamp, E; Belov, V; Benitez-Medina, C; Breidenbach, M; Brunner, T; Burenkov, A; Cleveland, B; Cook, S; Daniels, T; Danilov, M; Davis, CG; Delaquis, S; deVoe, R; Dobi, A; Dolinski, MJ; Dolgolenko, A; Dunford, M; Fairbank, W; Farine, J; Feldmeier, W; Fierlinger, P; Franco, D; Giroux, G; Gornea, R; Graham, K; Gratta, G; Hall, C; Hall, K; Hargrove, C; Herrin, S; Hughes, M; Johnson, A; Johnson, TN; Karelin, A; Kaufman, LJ; Kuchenkov, A; Kumar, KS; Leonard, DS; Leonard, F; Mackay, D; MacLellan, R; Marino, M; Mong, B; Montero Díez, M; Müller, AR; Neilson, R; Nelson, R; Odian, A; Ostrovskiy, I; O'Sullivan, K; Ouellet, C; Piepke, A; Pocar, A; Prescott, CY; Pushkin, K; Rowson, PC; Russell, JJ; Sabourov, A; Sinclair, D; Slutsky, S; Stekhanov, V; Tolba, T; Tosi, D; Twelker, K; Vogel, P; Vuilleumier, J-L; Waite, A; Walton, T; Weber, M; Wichoski, U; Wodin, J; Wright, JD; Yang, L; Yen, Y-R; Zeldovich, OY; EXO Collaboration,

Published Date

  • July 19, 2012

Published In

Volume / Issue

  • 109 / 3

Start / End Page

  • 032505 -

PubMed ID

  • 22861843

Pubmed Central ID

  • 22861843

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.109.032505

Language

  • eng