Search for neutrinoless double beta decay with enriched 76Ge in Gran Sasso 1990–2003

2004/03/14 by H. V. Klapdor‐Kleingrothaus, H. V. Klapdor-Kleingrothaus, I. V. Krivosheina +3 · 505 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Double beta decay #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics theoretical and experimental studies #Physics #hep-ph

paper · pdf · doi:10.1016/j.physletb.2004.02.025

published in Physics Letters B 586(3-4), 198-212 (Elsevier BV) · 19 pages, latex, 9 figures, 2 tables

openalex publication_date 2004/03/14 · arxiv created 2004/04/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The results of the HEIDELBERG-MOSCOW experiment which searches with 11 kg of enriched 76Ge for double beta decay in the GRAN Sasso underground laboratory are presented for the full running period August 1990 - May 2003. The duty cycle of the experiment was ~80%, the collected statistics is 71.7 kg y. The background achieved in the energy region of the Q value for double beta decay is 0.11 events/ kg y keV. The two-neutrino accompanied half-life is determined on the basis of more than 100 000 events. The confidence level for the neutrinoless signal has been improved to 4.2 sigma.

Citations

• Determination of Absolute Neutrino Masses from Bursts ofZBosons in Cosmic Rays
• EVIDENCE FOR NEUTRINOLESS DOUBLE BETA DECAY
• Spacetime structure of massive gravitino
• IMPLICATIONS OF OBSERVED NEUTRINOLESS DOUBLE BETA DECAY
• Review of Particle Physics

Cited by

• Neutrino electromagnetic interactions: A window to new physics
• Neutrino masses
• Constraining neutrino mass from neutrinoless double beta decay
• Recent advances in neutrinoless double beta decay search
• Neutrinoless double beta decay studied with configuration mixing methods
• LEPTONIC CP VIOLATION AND LEPTOGENESIS
• Observables sensitive to absolute neutrino masses. II
• Neutrino masses and mixing
• Critical view to “IGEXGe<mml:mprescripts/><mml:none/>76neutrinoless double-beta decay experiment: Prospects for next generation experiments”
• Constraints on neutrino masses from a galactic supernova neutrino signal at present and future detectors
• Low scale gravity as the source of neutrino masses?
• Non-zero θ13 and CP-violation in inverse neutrino mass matrix
• Pulse shape discrimination performance of inverted coaxial Ge detectors
• Neutrinoless double beta decay and neutrino mass
• Neutrinoless doubleβ-decay and neutrino mass hierarchies
• Cosmological Neutrino Mass Detection: The Best Probe of Neutrino Lifetime
• How robust are inflation model and dark matter constraints from cosmological data?
• Neutrinos in cosmology
• Conditions for detectingCPviolation via neutrinoless double beta decay
• Constraining mass spectra with sterile neutrinos from neutrinoless double beta decay, tritium beta decay, and cosmology
• Signal discovery in sparse spectra: A Bayesian analysis
• Status of double beta decay experiments using isotopes other than 136 Xe
• The quest for neutrinoless double beta decay: Pseudo-Dirac, Majorana, and sterile neutrinos
• Neutrino masses from cosmological probes
• Nuclear deformation and neutrinoless double-βdecay ofZr<mml:mprescripts/><mml:none/>94,96,Mo<mml:mprescripts/><mml:none/>98,100,Ru<mml:mprescripts/><mml:none/>104,Pd<mml:mprescripts/><mml:none/>110,Te<mml:mprescripts/><mml:none/>128,130, andNd<mml:mprescripts/><mml:none/>150nuclei within a mechanism involving neutrino mass
• The μ − e conversion in nuclei, μ → eγ, μ → 3e decays and TeV scale see-saw scenarios of neutrino mass generation
• Neutrinoless double beta decay and heavy sterile neutrinos
• Survey of lepton number violation via effective operators
• Neutrinoless double beta decay [wikipedia]