Flavor changing neutral scalar currents at $\mu^{+} \mu^{-}$ colliders
Flavor changing neutral scalar currents at $\mu^{+} \mu^{-}$ colliders
复制标题
DOI：
10.1103/physrevlett.75.3800
复制
发表时间：
1995-07
影响因子：
8.6
通讯作者：
D. Atwood;L. Reina;A. Soni
中科院分区：
文献类型：
--
作者：
D. Atwood;L. Reina;A. Soni
研究了在$\mu^+\mu^-$对撞机上观察通过$s$ -通道产生的中性希格斯玻色子的风味变化衰变$\fH\to t\bar c$及其随后衰变为$t\bar c$的前景。在具有风味变化耦合的两个希格斯重态模型的背景下给出了数值估计。研究发现，对于许多模型参数值，这种{\it树级}风味变化衰减将在可观察的水平上产生。此外，对顶部螺旋度的研究将允许确定风味变化希格斯耦合的相对强度，这些可以用$10^3$事件来测量。
The prospect of observing the flavor changing decay $\fH\to t\bar c$ of a neutral Higgs boson produced via $s$-channel and its subsequent decay into $t\bar c$ is considered at a $\mu^+\mu^-$ collider. Numerical estimates are given in the context of a two Higgs doublet model with flavor changing couplings. It is found that for many values of the model parameters such {\it tree-level} flavor changing decays will be produced at an observable level. In addition studies of the helicity of the top will allow the determination of the relative strengths of the flavor changing Higgs couplings and these may be measured with about $10^3$ events.