Published January 1, 2010 | Version v1
Journal article Metadata-only

Search for double beta decay of zinc and tungsten with low background ZnWO4 crystal scintillators

Creators

  • 1. Dip. di Fisica, Universita di Roma 'Tor Vergata', I-00133 Rome (Italy)
  • 2. INFN, sez. Roma 'Tor Vergata', I-00133 Rome (Italy)
  • 3. Dip. di Fisica, Universita di Roma 'La Sapienza', I-00185 Rome (Italy)
  • 4. INFN, Laboratori Nazionali del Gran Sasso, 67010 Assergi (Italy)
  • 5. Institute for Nuclear Research, MSP 03680 Kyiv (Ukraine)
  • 6. Institute for Scintillation Materials, 61001 Kharkiv (Ukraine)
  • 7. INFN, sez. Roma, I-00185 Rome (Italy)

Description

Double beta processes in 64Zn, 70Zn, 180W, and 186W have been searched for with the help of low background ZnWO4 crystal scintillators at the Gran Sasso National Laboratories of the INFN (Italy). The total measurement time exceeds ten thousand hours. New improved half-life (T1/2) limits on double electron capture and electron capture with positron emission in 64Zn have been set. New T1/2 bounds were also set on different modes of 2β processes in 70Zn, 180W, and 186W. Future perspectives are considered.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/202/1/012038

Additional details

Identifiers

DOI
10.1088/1742-6596/202/1/012038;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
202
Journal Issue
1
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
4. NPA (Nuclear Physics in Astrophysics) conference
Acronym
NPA IV
Dates
8-12 Jun 2009
Place
Frascati (Italy)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42061873
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CRYSTALS; DOUBLE BETA DECAY; ELECTRON CAPTURE; EMISSION; HALF-LIFE; PHOSPHORS; POSITRONS; SOLID SCINTILLATION DETECTORS; TUNGSTEN; TUNGSTEN 180; TUNGSTEN 186; ZINC; ZINC 64; ZINC 70; ZINC TUNGSTATES
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BETA DECAY; BETA-MINUS DECAY; CAPTURE; DECAY; ELEMENTARY PARTICLES; ELEMENTS; EVEN-EVEN NUCLEI; FERMIONS; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEPTONS; MATTER; MEASURING INSTRUMENTS; METALS; NUCLEAR DECAY; NUCLEI; OXYGEN COMPOUNDS; RADIATION DETECTORS; RADIOISOTOPES; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; SCINTILLATION COUNTERS; STABLE ISOTOPES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TUNGSTATES; TUNGSTEN COMPOUNDS; TUNGSTEN ISOTOPES; ZINC COMPOUNDS; ZINC ISOTOPES