We study the possibility of texture zeros in Majorana light neutrino mass matrix in the light of dark large mixing angle (DLMA) solution to solar neutrino problem where solar mixing angle (sin 2 θ 12 ≃ 0.7) lies in the second octant instead of first octant in standard large mixing angle (LMA) scenario (sin 2 θ 12 ≃ 0.3). In three neutrino scenario, we find that LMA and DLMA solutions lead to different set of allowed and disallowed textures with one and two zeros. While being consistent with existing bounds from neutrino oscillation data, neutrinoless double beta decay and cosmology these allowed textures also lead to interesting correlations among light neutrino parameters which can distinguish LMA from DLMA solution. We also check the implications for texture zeros in 3 + 1 neutrino scenario using both LMA and DLMA solutions. While LMA and DLMA solutions do not play decisive role in ruling out texture zeros in this case, t...

中文翻译：

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根据黑暗的LMA重新审视马约拉纳中微子纹理

针对太阳中微子问题的暗大混合角（DLMA）解决方案，我们研究了马约拉纳轻中微子质量矩阵中纹理零的可能性，其中太阳混合角（sin 2θ12≃0.7）位于第二个八分位数而不是第一个八分位数在标准大混合角（LMA）情况下（正弦2θ12≃0.3）。在三个中微子场景中，我们发现LMA和DLMA解决方案导致带有零和一个零的一组允许和不允许的纹理。尽管与中微子振荡数据，无中微子双β衰变和宇宙学的现有界限相一致，但这些允许的纹理还导致了轻中微子参数之间的有趣相关性，可以将LMA与DLMA解决方案区分开。我们还使用LMA和DLMA解决方案检查3 + 1中微子场景中纹理零的含义。