论文标题
在最小辐射扩展的seeSAW框架中，无菌中微子的LHC签名
LHC signatures of sterile neutrinos in a minimal radiative extended seesaw framework
论文作者
论文摘要
在有关标准模型的扩展中，尤其是在Seesaw机理模型中，可以自然地考虑到小中微子肿块和风味混合物的存在。在这项工作中，我们提出了一个最小扩展的Seesaw框架，上微子有两个右中微子，其中活跃的中微子质量是在辐射状态下得出的。使用该框架可以证明，在一定的质量限制内，光中微子质量项可以接近与I型seesaw机制下形式相似的形式。除此之外，我们还表明，右撇子中微子的衰减宽度（通过粒子对撞机中的W玻色子的衰变产生）足够短，可以使颗粒的寿命足够长，从而确保了在生产和衰减顶点之间可观察到的LHC位移。我们对这些流离失所的顶点签名因此可以作为验证这些右中性中微子在以后的实验中存在的一种手段的评论。最后，我们将未来工作的可能性列为可能的可能性，即粒子的顶点签名大于可以处理w玻色子的质量。
The presence of small neutrino masses and flavour mixings can be accounted for naturally in various models about extensions of the standard model, particularly in the seesaw mechanism models. In this work, we present a minimally extended seesaw framework with two right-handed neutrinos, where the active neutrino masses are derived in the radiative regime. Using the framework it can be shown that within certain mass limits, the light neutrino mass term can approach a form that is similar to its form under the type-I seesaw mechanism. Apart from this, we show that the decay width of right-handed neutrinos (produced through the decay of W boson in a particle collider) is short enough to cause a sufficiently long lifetime for the particles, thus ensuring an observable displacement in the LHC between the production and decay vertices. We comment on the fact that these displaced vertex signatures thus can serve as a means to verify the existence of these right-handed neutrinos in future experiments. Lastly, we line up the possibility of our future work where the vertex signatures of particles greater than the mass of W boson can be worked upon.
