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作者 | Chilong Lin |
著作名稱 | A FCNC-free Two-Higgs-Doublet Model comes with CP-violation
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摘要 | The problem of flavor-changing neutral interactions at tree level was long concerned in extensions of electro-weak standard model with extra Higgs doublets. In the simplest case with one extra Higgs doublet, the two-Higgs-doublet model, most types of the model do not solve this problem radically by finding pairs of Yukawa-coupling matrices which can be diagonalized simultaneously and respectively. However, such FCNC-free matrix pairs are not really unachievable. In this article, I will demonstrate how such pairs can be discovered and the general pattern of such FCNC-free pairs will be presented. Besides solving the FCNC problem, this model also provide a mechanism to break CP symmetry as a side effect. Comparing the magnitudes of derived elements of $V_{CKM}$ with empirical values, they are very close but tiny deviations still exist. |
系統號 | NO000004289 |
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