Klapdor's claim for the observation of the neutrinoless double beta-decay of Ge-76. Analysis and corrections

Understand

Heidelberg-Moscow Collaboration experimental data [1-4] with the claim for the observation of the neutrinoless double beta-decay of Ge-76 has been carefully analyzed.

• The analysis gave an evidence that the observed 2039 kev line in the full spectrum was produced by overlapping of three unresolved peaks: ~2035.5 kev, ~2037.5 kev and ~2039.5 kev.
• It was indicated that the 2035.5 kev and 2039.5 kev peaks were produced by the double-coincidences of gamma-quanta in the detectors.
• Existence of the two background gamma-peaks at ~2035.5 kev and ~2039.5 kev was confirmed by an analysis of the background measurements with low-background Ge detectors with an active shielding [5-7].