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arXiv 1404.2616hep-ph
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无中微子双β衰变的新期望和不确定性

New expectations and uncertainties on neutrinoless double beta decay

Stefano Dell'Oro, Simone Marcocci, Francesco Vissani

摘要:

研究了普通中微子的Majorana质量决定无中微子双β衰变速率的假设。从中微子振荡的预测更新。讨论了核不确定性,评估了Iachello等人最近指出的核介质中轴向矢量耦合常数淬灭的影响[Phys. Rev. C87,014315(2013)]。此外,目前和未来的实验的灵敏度进行了评估和可能的影响,从宇宙学的中微子质量的知识进行了研究。将中微子振荡的预言与宇宙学和无中微子双β衰变搜索的结果进行了比较,强调了测量误差的重要作用。指出了实验测定马约拉纳相的障碍。

英文摘要:

The hypothesis that the Majorana mass of ordinary neutrinos dominates the rate of neutrinoless double beta decay is investigated. Predictions from neutrino oscillations are updated. Nuclear uncertainties are discussed, evaluating the impact of the quenching of the axial vector coupling constant in the nuclear medium, recently pointed out by Iachello et al. [Phys. Rev. C87, 014315 (2013)]. Also, the sensitivity of present and future experiments is assessed and possible implications of the knowledge on neutrino masses from cosmology are studied. The predictions from neutrino oscillations are compared with the results from cosmology and from neutrinoless double beta decay searches, emphasizing the important role of the measurement errors. The obstacles to an experimental determination of the Majorana phases are pointed out.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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