论文标题

辐射性中微子质量,暗物质和瘦物质发生的常见起源

Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model

论文作者

Chen, Shao-Long, Banik, Amit Dutta, Liu, Ze-Kun

论文摘要

我们探索了Georgi-Machacek模型的现象学,并以两个Higgs Doublets和矢量fermion Doublets不变,$ SU(2)_l \ times U(1)_y \ times \ times \ times \ Mathcal {z} _4 \ times {z} _4 \ times _4 \ times \ times \ times \ mathcal {z} _2 _2 _2 $。 $ \ MATHCAL {Z} _4 $对称是自发损坏的,而强加的$ \ Mathcal {Z} _2 $对称性则禁止对称三重态,以生成任何真空期望值,并导致一个惰性的黑暗部门为黑物质提供可行的候选者,并产生中性中性群体,并产生了中源质量。该模型的另一个有趣特征是卵生生成是由矢量​​样费米子的衰变引起的。对该模型进行了详细研究,以寻找与暗物质,中微子物理学,风味物理学,物质抗逆变物不对称性的可用参数空间相一致的可用参数空间。

We explore the phenomenology of the Georgi-Machacek model extended with two Higgs doublets and vector fermion doublets invariant under $SU(2)_L \times U(1)_Y\times \mathcal {Z}_4 \times \mathcal {Z}_2$. The $\mathcal {Z}_4$ symmetry is broken spontaneously while the imposed $\mathcal {Z}_2$ symmetry forbids triplet fields to generate any vacuum expectation value and leading to an inert dark sector providing a viable candidate for dark matter and generate neutrino mass radiatively. Another interesting feature of the model is leptogenesis arising from decay of vector-like fermions. A detailed study of the model is pursued in search for available parameter space consistent with the theoretical and experimental observations for dark matter, neutrino physics, flavor physics, matter-antimatter asymmetry in the Universe.

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