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arXiv 1502.05704hep-phhep-ex
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CKM矩阵的奇偶性和右手模拟的恢复

Restoration of Parity and the Right-Handed Analog of the CKM Matrix

Goran Senjanović, Vladimir Tello

摘要:

在最近的一封信中,我们解析地确定了广义宇称最小左右对称理论中的右手夸克混合矩阵。我们推导出它的显式形式作为一个小参数,测量偏离厄米性的夸克质量矩阵的级数展开。在这里,我们仔细分析的收敛性的级数包括高阶项,并通过比较数值结果。我们将这些结果应用到一些唯象学的应用中,如右手规范玻色子$W_R$的产生和衰变,无中微子双β衰变,重标量偶态的衰变,强CP参数以及$K$和$B$ -介子物理中新质量尺度的理论极限.特别地,我们证明了在强子对撞机上产生$W_R$规范玻色子和无中微子双β衰变的相关耦合等于其左手对应物,在百分之一以内。我们还证明了$K$介子物理中$W_R$质量的理论下限的稳定性是由于右手混合矩阵的外部相位的部分抵消。

英文摘要:

In a recent Letter we determined analytically the right-handed quark mixing matrix in the minimal Left-Right symmetric theory with generalized Parity. We derived its explicit form as a series expansion in a small parameter that measures the departure from hermiticity of quark mass matrices. Here we analyze carefully the convergence of the series by including higher order terms and by comparing with numerical results. We apply our findings to some phenomenological applications such as the production and decays of the right-handed gauge boson $W_R$, the neutrinoless double beta decay, the decays of the heavy scalar doublet, the strong CP parameter and the theoretical limits on the new mass scale from the $K$ and $B$-meson physics. In particular, we demonstrate that the relevant coupling for the production of the $W_R$ gauge boson at hadronic colliders and for the neutrinoless double beta decay equals its left-handed counterpart, within a percent. We also demonstrate that the stability of the theoretical lower limit on the $W_R$ mass from the $K$-meson physics is due to a partial cancellation of the external phases of the right-handed mixing matrix.

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