Short-baseline electron neutrino oscillation length after the Troitsk experiment

Short-baseline electron neutrino oscillation length after the Troitsk experiment
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特罗伊茨克实验后的短基线电子中微子振荡长度

DOI:
10.1103/physrevd.87.013004
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发表时间:
2012-12
期刊:
影响因子:
5
通讯作者:
Long, H. W.
Long, H. W.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Giunti, C.;Laveder, M.;Li, Y. F.;Long, H. W.

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我们讨论了短基线电子中微子消失的影响,在3 + 1混合计划的最近特罗伊茨克边界的中微子与质量之间的混合2和100 eV。考虑到特罗伊茨克的数据,结合短基线nu(e)和(nu)对bar(e)消失实验的结果,其中包括反应堆和镓异常,我们推导出有效中微子平方质量差在0.85和43 eV(2)之间的2 sigma允许范围。上限意味着它是可能的,在距离和/或能量的振荡,可以观察到在放射源实验。这也有利于ICARUS@CERN实验,在该实验中,振荡很可能不会在近探测器中被洗掉。我们还讨论了无中微子双β衰变的影响。DOI:10.1103/PhysRevD.87.013004
We discuss the implications for short-baseline electron neutrino disappearance in the 3 + 1 mixing scheme of the recent Troitsk bounds on the mixing of a neutrino with mass between 2 and 100 eV. Considering the Troitsk data in combination with the results of short-baseline nu(e) and (nu) over bar (e) disappearance experiments, which include the reactor and Gallium anomalies, we derive a 2 sigma allowed range for the effective neutrino squared-mass difference between 0.85 and 43 eV(2). The upper bound implies that it is likely that oscillations in distance and/or energy can be observed in radioactive source experiments. It is also favorable for the ICARUS@CERN experiment, in which it is likely that oscillations are not washed out in the near detector. We discuss also the implications for neutrinoless double-beta decay. DOI: 10.1103/PhysRevD.87.013004
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