The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)
Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX), Prague, Çek Cumhuriyeti, 29 Mayıs - 02 Haziran 2017, cilt.1894, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 1894
- Doi Numarası: 10.1063/1.5007652
- Basıldığı Şehir: Prague
- Basıldığı Ülke: Çek Cumhuriyeti
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Dokuz Eylül Üniversitesi Adresli: Evet
Özet
The observation of neutrinoless double-beta decay (0 nu beta beta) would show that lepton number is violated, reveal that neutrinos are Majorana particles, and provide information on neutrino mass. A discovery-capable experiment covering the inverted ordering region, with effective Majorana neutrino masses of 15 - 50 meV, will require a tonne-scale experiment with excellent energy resolution and extremely low backgrounds, at the level of similar to 0.1 count/(FWHM.t.yr) in the region of the signal. The current generation Ge-76 experiments GERDA and the Majorana Demonstrator, utilizing high purity Germanium detectors with an intrinsic energy resolution of 0.12%, have achieved the lowest backgrounds by over an order of magnitude in the 0 nu beta beta signal region of all 0 nu beta beta experiments. Building on this success, the LEGEND collaboration has been formed to pursue a tonne-scale Ge-76 experiment. The collaboration aims to develop a phased 0 nu beta beta experimental program with discovery potential at a half-life approaching or at 1028 years, using existing resources as appropriate to expedite physics results.