scholarly journals The Future of Neutrinoless Double Beta Decay Searches with Germanium Detectors

2020 ◽  
Vol 1690 ◽  
pp. 012180
Author(s):  
F Edzards
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Germanium Detectors ◽  
The Future

NEW RESULTS IN THE ITEP/YePI DOUBLE BETA-DECAY EXPERIMENT WITH ENRICHED GERMANIUM DETECTORS

1990 ◽  
Vol 05 (17) ◽  
pp. 1299-1306 ◽  
Author(s):  
A.A. VASENKO ◽  
I.V. KIRPICHNIKOV ◽  
V.A. KUZNETSOV ◽  
A.S. STAROSTIN ◽  
A.G. DJANYAN ◽  
...  
Keyword(s):  
Maximum Likelihood ◽  
Beta Decay ◽  
Half Life ◽  
Maximum Likelihood Method ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Likelihood Method ◽  
Salt Mine ◽  
Germanium Detectors ◽  
Double Beta Decay Experiment

The search for double beta-decay of 76 Ge was carried out with a detector fabricated of enriched material (85% abundance of 76 Ge compared with 7.8% natural abundance). Measurements have been performed by the ITEP/YePI team in the Avan salt mine, 245 meters underground, situated in Yerevan, Armenia. Evidence for two-neutrino double beta-decay of 76 Ge with half-life of T1/2(2v)=(9±1) · 1020 y was obtained. New limits for neutrinoless double beta-decay, T1/2(0v)>1.3×1024 y, and double beta-decay with majoron emission T1/2(0v, B)>1×1022 y were obtained at 68% CL from mean background fluctuations. Limit for 0v-decay derived by the maximum likelihood method was T1/2>2.0×1024 y.

scholarly journals CONSTRAINTS FROM NEUTRINOLESS DOUBLE BETA DECAY

2002 ◽  
Vol 17 (39) ◽  
pp. 2597-2603 ◽  
Author(s):  
KOICHI MATSUDA ◽  
TATSURU KIKUCHI ◽  
TAKESHI FUKUYAMA ◽  
HIROYUKI NISHIURA
Keyword(s):  
Beta Decay ◽  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Neutrinoless Double Beta Decay ◽  
Upper Bounds ◽  
Double Beta Decay ◽  
Lepton Sector ◽  
The Future ◽  
Astrophysical Observation ◽  
Double Beta Decay Experiment

We examine the constraints from the recent HEIDELBERG–MOSCOW double beta decay experiment. It leads us to the almost degenerate or inverse hierarchy neutrino mass scenario. In this scenario, we obtain possible upper bounds for the Majorana CP violating phase in the lepton sector by incorporating the data from the neutrino oscillation, the single beta decay experiments, and from the astrophysical observation. We also predict the neutrino mass that may be measurable in the future beta decay experiments.

scholarly journals Hiding neutrinoless double beta decay in the minimal seesaw mechanism

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Takehiko Asaka ◽  
Hiroyuki Ishida ◽  
Kazuki Tanaka
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Seesaw Mechanism

scholarly journals Flavored neutrinoless double beta decay

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Lukas Graf ◽  
Sudip Jana ◽  
Manfred Lindner ◽  
Werner Rodejohann ◽  
Xun-Jie Xu
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay
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