Status of selected neutrinoless double-beta decay experiments

Conference · Mon Aug 01 04:00:00 EDT 1988

OSTI ID:6723255

Brodzinski, R L; Reeves, J H; Miley, H S

A brief update is given on a number of ongoing 0..nu.. ..beta beta..- decay experiments. Progress is reported in background reduction, limits are given on the various modes of decay, and projections of potential sensitivity are made in some cases. In particular, a new result from the PNL-USC 0..nu.. ..beta beta..-decay experiment yields a half-life of (3.2/sub /minus/1.2//sup +2.2/) /times/ 10/sup 21/ y (1sigma) for decay with the emission of a majoron. While a positive result is still observed, it is now statistically less significant. A new experiment is in progress utilizing /approximately/200-cm/sup 3/ detectors fabricated from recently deep-mined Ge to decrease background cosmogenic radioactivity. 13 refs., 1 tab.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6723255
• Report Number(s): PNL-SA-16147; CONF-8805142-43; ON: DE89001726
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BETA-MINUS DECAY
DECAY
DOUBLE BETA DECAY
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
GERMANIUM 76
GERMANIUM ISOTOPES
HALF-LIFE
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEPTONS
MAJORANA THEORY
MASSLESS PARTICLES
MOLYBDENUM 100
MOLYBDENUM ISOTOPES
NEODYMIUM 150
NEODYMIUM ISOTOPES
NEUTRINOS
NUCLEAR DECAY
NUCLEI
RARE EARTH NUCLEI
STABLE ISOTOPES
XENON 136
XENON ISOTOPES