在强子对撞机上区分希格斯玻色子玻色子与介子和镭子
Differentiating the Higgs boson from the dilaton and the radion at hadron colliders
摘要：
一些超越标准模型（SM）的候选理论预测了TeV区域以下的新标量玻色子。其中，在兰德尔-桑德拉姆模型中预测的镭子和在自发尺度对称性破缺中预测的玻色子与SM希格斯玻色子的耦合非常相似，并且在大型强子对撞机和Tevatron的希格斯玻色子的预期信号中很难区分这三种自旋为0的粒子。我们表明，观察的比例西格玛（伽马伽马）/西格玛（WW）给出了一个简单而果断的方式，独立于模型参数的值：VEVs的radion和radionfield。
英文摘要：
A number of candidate theories beyond the standard model (SM) predict new scalar bosons below the TeV region. Among these, the radion, which is predicted in the Randall-Sundrum model, and the dilaton, which is predicted in spontaneous scale symmetry breaking, have very similar couplings to those of the SM Higgs boson, and it is very difficult to differentiate these three spin-0 particles in the expected signals of the Higgs boson at the LHC and Tevatron. We demonstrate that the observation of the ratio sigma(gamma gamma)/sigma(WW) gives a simple and decisive way, independently of the values of model parameters: the VEVs of the radion and dilaton fields.
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