A separation method of 0ν- and 2ν-events in double beta decay experiments with DCBA

Ishihara, N.; Inagaki, T.; Ohama, T.; Omata, K.; Takeda, Shigeru; Yamada, Y.; Emura, T.; Itoh, R.; Kato, Yoshiaki; Sakamoto, Y.; Shimada, Kenji; Tamura, N.; Kitamura, S.

doi:10.1016/s0168-9002(99)01003-7

Cited by 42 publications

(1 citation statement)

References 29 publications

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“…A large variety of different upcoming experiments exists in various stages of realization. They are in order of increasing isotope mass CANDLES [60] ( 48 Ca), GERDA [61] and MAJORANA [62] ( 76 Ge), LUCIFER [47] ( 82 Se or 100 Mo or 116 Cd), SuperNEMO [49] ( 82 Se or 150 Nd), MOON [48] ( 82 Se or 100 Mo), COBRA [63] ( 116 Cd) , CUORE [64] ( 130 Te), EXO [65], XMASS [66], KamLAND-Zen [67] and NEXT [68] ( 136 Xe), DCBA [69] and SNO+ [70] ( 150 Nd). As discussed before not for all proposals the final decision on the selected isotope is already made.…”

Section: Experimental Considerationmentioning

confidence: 99%

Neutrinoless Double Beta Decay, the Inverted Hierarchy and Precision Determination of theta(12)

Dueck,

Rodejohann,

Zuber

2011

Preprint

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Ruling out the inverted neutrino hierarchy with neutrinoless double beta decay experiments is possible if a limit on the effective mass below the minimal theoretically possible value is reached. We stress that this lower limit depends strongly on the value of the solar neutrino mixing angle: it introduces an uncertainty of a factor of 2 within its current 3σ range. If an experiment is not background-free, a factor of two in effective mass corresponds to a combined factor of 16 improvement for the experimental parameters running time, detector mass, background level and energy resolution. Therefore, a more precise determination of θ 12 is crucial for the interpretation of experimental results and the evaluation of the potential and requirements for future experiments. We give the required half-lifes to exclude (and touch) the inverted hierarchy regime for all double beta decay isotopes with a Q-value above 2 MeV. The nuclear matrix elements from 6 different groups and, if available, their errors are used and compared. We carefully put the calculations on equal footing in what regards various convention issues. We also use our compilation of matrix elements to give the reachable values of the effective mass for a given half-life value.

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Section: Experimental Considerationmentioning

confidence: 99%

Neutrinoless Double Beta Decay, the Inverted Hierarchy and Precision Determination of theta(12)

Dueck,

Rodejohann,

Zuber

2011

Preprint

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Tables of Double Beta Decay Data—an Update

Tretyak¹,

Zdesenko²

2002

Atomic Data and Nuclear Data Tables

286

163

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Neutrinoless Double Beta-Decay

Bilenky

2010

Introduction to the Physics of Massive and Mixed Neutrinos

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This paper introduces the neutrinoless double-beta decay the rarest nuclear weak process and describes the status of the research for this transition, both from the point of view of theoretical nuclear physics and in terms of the present and future experimental scenarios. Implications of this phenomenon on crucial aspects of particle physics are briefly discussed. The calculations of the nuclear matrix elements in case of mass mechanisms are reviewed, and a range for these quantities is proposed for the most appealing candidates. After introducing general experimental conceptssuch as the choice of the best candidates, the different proposed technological approaches, and the sensitivity-we make the point on the experimental situation. Searches running or in preparation are described, providing an organic presentation which picks up similarities and differences. A critical comparison of the adopted technologies and of their physics reach in terms of sensitivity to the effective Majorana neutrino mass is performed. As a conclusion, we try to envisage what we expect round the corner and at a longer time scale.

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A separation method of 0ν- and 2ν-events in double beta decay experiments with DCBA

Cited by 42 publications

References 29 publications

Neutrinoless Double Beta Decay, the Inverted Hierarchy and Precision Determination of theta(12)

Neutrinoless Double Beta Decay, the Inverted Hierarchy and Precision Determination of theta(12)

Tables of Double Beta Decay Data—an Update

Neutrinoless Double Beta-Decay

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