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arXiv 1207.6641hep-ph
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由具有$Z_3$对称性的R宇称破坏计算中微子质量

Neutrino masses from R-parity violation with a $Z_3$ symmetry

E. Peinado, A. Vicente

摘要:

我们考虑一个超对称模型,其中中微子质量矩阵来自双线性和三线性R宇称破坏,都受到$Z_3$味对称性的限制。假设味盲软超对称性(SUSY)破缺条件,在低能量下由于运行的影响进行了校正,我们得到了一个中微子质量矩阵与振荡数据。特别地,可以容易地适应大的$θ_{13}$角。我们还发现反应堆和大气混合角之间的相关性。在某些情况下,这会导致明显偏离$θ_{23} = π/4$。三线性耦合主导的超对称粒子(LSP)衰变为在对撞机上检验模型提供了一种直接的方法。

英文摘要:

We consider a supersymmetric model where the neutrino mass matrix arises from bilinear and trilinear R-parity violation, both restricted by a $Z_3$ flavor symmetry. Assuming flavor blind soft supersymmetry (SUSY) breaking conditions, corrected at low energies due to running effects, we obtain a neutrino mass matrix in agreement with oscillation data. In particular, a large $θ_{13}$ angle can be easily accommodated. We also find a correlation between the reactor and atmospheric mixing angles. This leads in some scenarios to a clear deviation from $θ_{23} = π/4$. The Lightest Supersymmetric Particle (LSP) decay, dominated by the trilinear couplings, provides a direct way to test the model at colliders.

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