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Constraining a general U(1)′ inverse seesaw model from vacuum stability, dark matter, and collider

机译:从真空稳定,暗物质和撞机中约束一般U(1)的逆跷跷板模型

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We consider a class of gauged U ( 1 ) extensions of the Standard Model (SM), where the light neutrino masses are generated by an inverse seesaw mechanism. In addition to the three right handed neutrinos, we add three singlet fermions and demand an extra Z 2 symmetry under which, the third generations of both of the neutral fermions are odd, which in turn gives us a stable dark matter candidate. We express the U ( 1 ) charges of all the fermions in terms of the U ( 1 ) charges of the standard model Higgs and the new complex scalar. We study the bounds on the parameters of the model from vacuum stability, perturbative unitarity, dark matter relic density, and direct detection constraints. We also obtain the collider constraints on the Z ′ mass and the U ( 1 ) ′ gauge coupling. Finally, we compare all the bounds on the Z ′ mass versus the U ( 1 ) ′ gauge coupling plane.
机译:我们考虑一类标准模型(SM)的测量U(1)延伸,其中光中子质量由逆跷跷板机制产生。 除了三个右手中微子外,我们还添加了三个单线态,并要求额外的Z 2对称性,其中两个中性离子粒子的第三代是奇数,这又给了我们一个稳定的暗物质候选者。 我们以标准模型HIGGS和新复数标量的U(1)指控,表达U(1)指令所有费米。 我们从真空稳定性,扰动统一,暗物质遗物密度和直接检测约束来研究模型参数的界限。 我们还获得了Z'质量和U(1)尺寸耦合的碰撞器约束。 最后,我们比较Z'质量上的所有界限与U(1)'仪表耦合平面。

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