论文标题
$ e^+e^ - $ colliders的一对非小节颗粒粒子
A Nondiagonal Pair of Majorana Particles at $e^+e^-$ Colliders
论文作者
论文摘要
我们执行全面且与模型无关的分析，以表征具有不同质量和任意旋转的非对角线对的旋转和动力结构，即$ e^-e^+\ to x_2 x_1 $，然后是顺序的两体衰减，随后是$ x_2 $ x_1 $ x_1 $ z $ x__2 $ x_2 $ x_2 $ x_2 $ x_2 $ x_1 $在高能$ e^+e^ - $ colliders上逃脱未发现。标准的Leptonic $ Z $ -BOSON衰减，$ z \ to \ ell^ - \ ell^+$带有$ \ ell = e $或$μ$，用于精确诊断受生产和衰减过程影响的$ z $两极分化。基于螺旋形式主义和灯芯螺旋旋转，用于描述相关的生产幅度幅度和分布，我们阐明了离散CP对称性的振幅和分布的含义，以及两个粒子是他们自己的抗粒子。为了混凝土插图，详细研究了最小超对称标准模型中这种类型的示例。
We perform a comprehensive and model-independent analysis for characterizing the spin and dynamical structure of the production of a non-diagonal pair of Majorana particles with different masses and arbitrary spins, $e^-e^+\to X_2 X_1$, followed by a sequential two-body decay, $X_2\to Z X_1$, of the heavier particle $X_2$ into a $Z$ gauge boson and the lighter particle $X_1$ escaping undetected at high-energy $e^+e^-$ colliders. Standard leptonic $Z$-boson decays, $Z\to \ell^-\ell^+$ with $\ell=e$ or $μ$, are employed for precisely diagnosing the $Z$ polarization influenced by the production and decay processes. Based on helicity formalism and Wick helicity rotation for describing the correlated production-decay amplitudes and distributions, we work out the implications on the amplitudes and distributions of discrete CP symmetry and the Majorana condition that two particles are their own anti-particles. For the sake of a concrete illustration, an example of this type in the minimal supersymmetric Standard Model is investigated in detail.
