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Ultralow background searches for. beta. beta. -decay, cold dark matter and solar axions

Conference ·
OSTI ID:5495393
; ; ; ; ; ; ; ;
An ultralow background Ge detector in the Homestake gold mine is applied to searches for 0 nu ..beta beta..-decay, cold dark matter candidates and invisible axions from the sun. A large body of low background Ge data imply 2.3 eV. Particles with spin independent Z/sup 0/ exchange interactions and masses between 20 GeV and 5 TeV are excluded as dominant in the galactic halo. Finally, axions with F/2x'/sub e/ < 0.5 x 10/sup 7/ GeV are also ruled out. 11 refs., 3 figs.
Research Organization:
Pacific Northwest Lab., Richland, WA (USA); South Carolina Univ., Columbia (USA). Dept. of Physics; Boston Univ., MA (USA). Dept. of Physics; Stanford Univ., CA (USA). Dept. of Physics; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA); Harvard Univ., Cambridge, MA (USA). Dept. of Physics
DOE Contract Number:
AC06-76RL01830
OSTI ID:
5495393
Report Number(s):
PNL-SA-14160; CONF-860741-9; ON: DE86013592
Country of Publication:
United States
Language:
English

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Related Subjects

640101 -- Astrophysics &amp; Cosmology-- Cosmic Radiation
640104 -- Astrophysics &amp; Cosmology-- Solar Phenomena
651622* -- Nuclear Properties &amp; Reactions
A=59-89
Experimental-- Radioactive Decay-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AXIONS
BETA DECAY
BETA-MINUS DECAY
BOSONS
CHARGED PARTICLE DETECTION
DECAY
DETECTION
DOUBLE BETA DECAY
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
GE SEMICONDUCTOR DETECTORS
GERMANIUM 76
GERMANIUM ISOTOPES
GOLDSTONE BOSONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MEASURING INSTRUMENTS
NONLUMINOUS MATTER
NUCLEI
POSTULATED PARTICLES
RADIATION DETECTION
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
STABLE ISOTOPES