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The MAJORANA DEMONSTRATOR: Progress towards showing the feasibility of a tonne-scale 76Ge neutrinoless double-beta decay experiment
P. Finnerty, E. Aguayo, M. Amman +80
The MAJORANA DEMONSTRATOR will search for the neutrinoless double-beta decay of the 76Ge isotope with a mixed array of enriched and natural germanium detectors. The observation of…
The C-4 Dark Matter Experiment
R. M. Bonicalzi, J. I. Collar, J. Colaresi +12
We describe the experimental design of C-4, an expansion of the CoGeNT dark matter search to four identical detectors each approximately three times the mass of the p-type point co…
Fast-Neutron Activation of Long-Lived Nuclides in Natural Pb
V. E. Guiseppe, S. R. Elliott, N. E. Fields +1
We measured the production of the long-lived nuclides Bi-207, Pb-202, and Hg-194 in a sample of natural Pb due to high-energy neutron interactions using a neutron beam at the Los A…
CoGeNT: A Search for Low-Mass Dark Matter using p-type Point Contact Germanium Detectors
C. E. Aalseth, P. S. Barbeau, J. Colaresi +12
CoGeNT employs p-type point-contact (PPC) germanium detectors to search for Weakly Interacting Massive Particles (WIMPs). By virtue of its low energy threshold and ability to rejec…
Characteristics of Signals Originating Near the Lithium-Diffused N+ Contact of High Purity Germanium P-Type Point Contact Detectors
The MAJORANA Collaboration, E. Aguayo, M. Amman +83
A study of signals originating near the lithium-diffused n+ contact of p-type point contact (PPC) high purity germanium detectors (HPGe) is presented. The transition region between…
A Maximum Likelihood Analysis of Low-Energy CDMS Data
J. I. Collar, N. E. Fields
An unbinned maximum likelihood analysis of CDMS low-energy data reveals a strong preference (5.7 sigma C.L.) for a model containing an exponential excess of events in the nuclear r…