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arXiv · hep-ex/9902014

Limits on the Majorana neutrino mass in the 0.1 eV range

L. Baudis·A. Dietz·G. Heusser·H. V. Klapdor-Kleingrothaus·I. V. Krivosheina·St. Kolb·B. Majorovits·V. F. Melnikov·H. Paes·F. Schwamm·H. Strecker·V. Alexeev·A. Balysh·A. Bakalyarov·S. T. Belyaev·V. I. Lebedev·S. Zhukov
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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 the half-life of the neutrinoless double beta decay in 76Ge of T_1/2 > 5.7 * 10^{25} yr at 90% C.L., thus excluding an effective Majorana neutrino mass greater than 0.2 eV. This allows to set strong constraints on degenerate neutrino mass models.

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L. Baudis, A. Dietz, G. Heusser, H. V. Klapdor-Kleingrothaus, I. V. Krivosheina, St. Kolb, B. Majorovits, V. F. Melnikov, H. Paes, F. Schwamm, H. Strecker, V. Alexeev, A. Balysh, A. Bakalyarov, S. T. Belyaev, V. I. Lebedev, S. Zhukov. 1999-02-10. Limits on the Majorana neutrino mass in the 0.1 eV range. https://doi.org/10.1103/physrevlett.83.41

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