/ nucl-ex arXiv:1610.06141


Search for Pauli Exclusion Principle Violating Atomic Transitions and Electron Decay with a P-type Point Contact Germanium Detector


Abgrall, N. (LBNL, NSD) ; Arnquist, I.J. (PNL, Richland) ; Avignone III, F.T. (South Carolina U.) ; Barabash, A.S. (Moscow, ITEP) ; Bertrand, F.E. (Oak Ridge) ; Bradley, A.W. (LBNL, NSD) ; Brudanin, V. (Dubna, JINR) ; Busch, M. (TUNL, Durham) ; Buuck, M. (Washington U., Seattle) ; Caldwell, A.S. (South Dakota Sch. Mines Tech.) ; Chan, Y-D. (LBNL, NSD) ; Christofferson, C.D. (South Dakota Sch. Mines Tech.) ; Chu, P.-H. (Los Alamos) ; Cuesta, C. (Washington U., Seattle) ; Detwiler, J.A. (Washington U., Seattle) ; Dunagan, C. (South Dakota Sch. Mines Tech.) ; Efremenko, Yu. (Tennessee U.) ; Ejiri, H. (Osaka U., Res. Ctr. Nucl. Phys.) ; Elliott, S.R. (Los Alamos) ; Finnerty, P.S (North Carolina U.) ; Galindo-Uribarri, A. (Oak Ridge) ; Gilliss, T. (North Carolina U.) ; Giovanetti, G.K. (North Carolina U.) ; Goett, J. (Los Alamos) ; Green, M.P. (TUNL, Durham) ; Gruszko, J. (Washington U., Seattle) ; Guinn, I.S. (Washington U., Seattle) ; Guiseppe, V.E. (South Carolina U.) ; Henning, R. (North Carolina U.) ; Hoppe, E.W. (PNL, Richland) ; Howard, S. (South Dakota Sch. Mines Tech.) ; Howe, M.A. (North Carolina U.) ; Jasinski, B.R. (South Dakota U.) ; Keeter, K.J. (Black Hills State U.) ; Kidd, M.F. (Tennessee Tech. U.) ; Konovalov, S.I. (Moscow, ITEP) ; Kouzes, R.T. (PNL, Richland) ; LaFerriere, B.D. (PNL, Richland) ; Leon, J. (Washington U., Seattle) ; MacMullin, J. (North Carolina U.) ; Martin, R.D. (Queen's U., Kingston) ; Massarczyk, R. (Los Alamos) ; Meijer, S.J. (North Carolina U.) ; Mertens, S. (LBNL, NSD) ; Orrell, J.L. (PNL, Richland) ; O'Shaughnessy, C. (North Carolina U.) ; Poon, A.W.P. (LBNL, NSD) ; Radford, D.C. (Oak Ridge) ; Rager, J. (North Carolina U.) ; Rielage, K. (Los Alamos) ; Robertson, R.G.H. (Washington U., Seattle) ; Romero-Romero, E. (Tennessee U.) ; Shanks, B. (North Carolina U.) ; Shirchenko, M. (Dubna, JINR) ; Suriano, A.M. (South Dakota Sch. Mines Tech.) ; Tedeschi, D. (South Carolina U.) ; Trimble, J.E. (North Carolina U.) ; Varner, R.L. (Oak Ridge) ; Vasilyev, S. (Dubna, JINR) ; Vetter, K. (LBNL, NSD) ; Vorren, K. (North Carolina U.) ; White, B.R. (Oak Ridge) ; Wilkerson, J.F. (North Carolina U.) ; Wiseman, C. (South Carolina U.) ; Xu, W. (North Carolina U.) ; Yakushev, E. (Dubna, JINR) ; Yu, C.-H. (Oak Ridge) ; Yumatov, V. (Moscow, ITEP) ; Zhitnikov, I. (Dubna, JINR)

Abstract: A search for Pauli-exclusion-principle-violating K-alpha electron transitions was performed using 89.5 kg-d of data collected with a p-type point contact high-purity germanium detector operated at the Kimballton Underground Research Facility. A lower limit on the transition lifetime of 5.8x10^30 seconds at 90% C.L. was set by looking for a peak at 10.6 keV resulting from the x-ray and Auger electrons present following the transition. A similar analysis was done to look for the decay of atomic K-shell electrons into neutrinos, resulting in a lower limit of 6.8x10^30 seconds at 90 C.L. It is estimated that the MAJORANA DEMONSTRATOR, a 44 kg array of p-type point contact detectors that will search for the neutrinoless double-beta decay of 76-Ge, could improve upon these exclusion limits by an order of magnitude after three years of operation.

Web-Page: http://inspirehep.net/record/1492767/files/pep_risetime_dist.png; http://inspirehep.net/record/1492767/files/pep_90_fit.png; http://inspirehep.net/record/1492767/files/arXiv:1610.06141.pdf


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