In this brief review, a description of the observed evidence for neutrinoless double beta3–5
in the 76 Ge experiment in Gran Sasso (Heidelberg–Moscow experiment) which has been …

New results for the double beta decay of 76 Ge are presented. They are extracted from data
obtained with the HEIDELBERG-MOSCOW experiment, which operates five enriched 76 Ge …

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 …

The data of the Heidelberg–Moscow double beta decay experiment for the measuring
period August 1990–May 2000 (54.9813 kg y or 723.44 molyears), published recently, are …

Abstract The Heidelberg-Moscow experiment gives the most stringent limit on the Majorana
neutrino mass. After 24 kg yr of data with pulse shape measurements, we set a lower limit on …

Data acquisition in a long-running underground experiment has its specific experimental
challenges, concerning data acquisition, stability of the experiment and background …

The full setup of the Heidelberg-Moscow double β decay experiment is presented. This
experiment gives at present the most stringent upper bound, improving the neutrino mass …

The precision of mass measurements in a Penning trap increases linearly with the charge of
the ion. Therefore we have attached a Penning trap, named SMILETRAP, to the electron …

The Q value of the 76 Ge double beta decay has been determined by measuring the masses
of 76 Ge and 76 Se in a Penning trap using neon-and fluorinelike ions. The obtained …

Substantial progress has been made in double beta decay experiments in the past few
years, including the beginning of sensitive new searches for neutrinoless double beta …