QUARK MASS MATRICES AND OBSERVABLE QUANTITIES
نویسندگان
چکیده
منابع مشابه
Quark mass matrices and observable quantities
A nearly historical account of quark mass matrix models is given, and the structure of quark mass matrices in the Standard Model is studied. For a minimal parameter basis suggested earlier, where Mu is diagonal and Md11, Md13, Md31 are zero, the dependence of mass matrices on the CP violating phase δ of VCKM is reported: all parameters are almost independent, except Md22 and Md23, and the equal...
متن کاملNni-form Quark Mass Matrix Expressed by the Observable Quantities
It is pointed out that the phase convention of the CKM matrix V aaects texture analysis of the quark mass matrices (M u ; M d) when we try to describe (M u ; M d) by the observable quantities (quark masses and CKM matrix parameters) only. This is demonstrated for a case of the non-Hermitian Fritzsch-type mass matrix (f M u ; f M d), which is a general expression of quark mass matrix (M u ; M d)...
متن کاملNon-Hermitian Fritzsch-Type Quark Mass Matrix Expressed by the Observable Quantities
For the non-Hermitian Fritzsch-type mass matrix (M̃u, M̃d), which is a general expression of quark mass matrices, the rephasing-gauge dependency and δ-dependency (where Vub = |Vub|e) of each matrix element M̃qij (q = u, d; i, j = 1, 2, 3) are investigated. We find that the textures of (M̃u, M̃d) depend on the rephasing gauge and we can always take M̃u32 = 0 without losing generality, so that the rema...
متن کاملLepton and Quark Mass Matrices
We propose a model that all quark and lepton mass matrices have the same zero texture. Namely their (1,1), (1,3) and (3,1) components are zeros. The mass matrices are classified into two types I and II. Type I is consistent with the experimental data in quark sector. For lepton sector, if seesaw mechanism is not used, Type II allows a large νμ-ντ mixing angle. However, severe compatibility with...
متن کاملFlavor Democracy and Quark Mass Matrices *
Based on experimental mass hierarchy, a set of flavor–democratic (FD) quark mass matrices at low energies is discussed. The model predicts CP violation parameters J CP = (0.3 ± 0.2) 10 −4 and ε ′ /ε = (0.6 ± 0.5) 10 −3. However, this simple FD model also predicts a physical top quark mass not much higher than 100 GeV. As a next step, we assume that the Standard Model (SM) breaks down around som...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Modern Physics Letters A
سال: 1999
ISSN: 0217-7323,1793-6632
DOI: 10.1142/s0217732399002054