23 research outputs found
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A search for bremsstrahlung solar axions using the Majorana low-background BEGe detector at Kimballton (MALBEK)
A low-background, high-purity germanium detector has been used to search for
evidence of low-energy, bremsstrahlung-generated solar axions. An upper bound
of is placed on the direct coupling of DFSZ
model axions to electrons. The prospects for the sensitivity of the Majorana
Demonstrator array of point-contact germanium detectors to solar axions are
discussed in the context of the model-independent annual modulation due to the
seasonal variation of the earth-sun distance
Recommended from our members
The {\sc Majorana Demonstrator} Neutrinoless Double-Beta Decay Experiment
The {\sc Majorana Demonstrator will search for the neutrinoless double-beta
decay of the isotope Ge-76 with a mixed array of enriched and natural germanium
detectors. The observation of this rare decay would indicate the neutrino is
its own antiparticle, demonstrate that lepton number is not conserved, and
provide information on the absolute mass scale of the neutrino. The {\sc
Demonstrator} is being assembled at the 4850-foot level of the Sanford
Underground Research Facility in Lead, South Dakota. The array will be situated
in a low-background environment and surrounded by passive and active shielding.
Here we describe the science goals of the {\sc Demonstrator} and the details of
its design