

作者  Lin, Chilong 
出版日期  201901 
接受證明  ; 
著作名稱  A twoHiggsdoublet Model without flavorchanging neutral currents at treelevel

刊名  Journal of Modern Physics 
卷  10 
期  1 
頁數  3542 
主題  物理;物理 
關鍵字  2HDM，FCNC，CP violation 
摘要  The flavorchanging neutral current (FCNC) problem at treelevel is a very critical defect of the two Higgs doublet extension of standard model (SM). In this article, a twoHiggsdoublet model (2HDM) in which such defects do not exist at all is to be demonstrated. The general pattern of matrix pairs which can be diagonalized simultaneously by a same unitary transformation is proposed without any extra symmetries. Only an assumption of the hermiticity of mass matrices is employed in the derivation. With this assumption, number of free parameters in mass matrix of a specific fermion type is reduced down to a manageable level. Eigenvalues and eigenvectors are analytically derived and it’s surprising that unitary transformation matrix thus derived depends on only two parameters. It is a very general and elegant way to solve the treelevel FCNC problem radically and it includes previous similar models as special cases with specific parameter values. 
全文  ;; 
資料連結  
DOI  10.4236/jmp.2019.101004 
系統號  NO000005110 

