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arXiv 1702.08186hep-phhep-ex
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双荷玻色子$H^{\pm\pm}$到$τ^{\pm}τ^{\pm}$的二体衰变定理及其应用

A theorem about two-body decay and its application for a doubly-charged boson $H^{\pm\pm}$ going to $τ^{\pm}τ^{\pm}$

Li-Gang Xia

摘要:

在一般的衰变链$A\to B_1B_2\to C_1C_2\ldots$中,我们证明了$B_{1,2}$衰变中的角关联函数$I(θ_1,θ_2,ϕ_+)$与母粒子$A$产生时的极化无关.这保证了我们可以利用这些角分布来确定$A$的自旋宇称性质,而不需要知道它的产生细节。作为一个例子,我们研究了一个潜在的双电荷玻色子$H^{\pm\pm}$到同号$τ$轻子对的衰变。

英文摘要:

In a general decay chain $A\to B_1B_2\to C_1C_2\ldots$, we prove that the angular correlation function $I(θ_1,θ_2,ϕ_+)$ in the decay of $B_{1,2}$ is irrelevant to the polarization of the mother particle $A$ at production. This guarantees that we can use these angular distributions to determine the spin-parity nature of $A$ without knowing its production details. As an example, we investigate the decay of a potential doubly-charged boson $H^{\pm\pm}$ going to same-sign $τ$ lepton pair.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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