New Types of Germanium Detectors for the Search of Neutrinoless Double Beta Decay

2019 ◽  
Vol 83 (4) ◽  
pp. 513-517
Author(s):  
N. S. Rumyantseva
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Germanium Detectors

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 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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