نتایج جستجو برای: mass matrix
تعداد نتایج: 816045 فیلتر نتایج به سال:
We have discussed predictions of |Ue3| and JCP in the framework of the neutrino mass matrix with two zeros. The lower bound of |Ue3| is 0.05, which depends on tan θ12 and tan θ23. We have investigated the stability of these predictions taking account of small corrections to zeros, which may come from radiative corrections or off-diagonal elements of the charged lepton mass matrix. The lower bou...
We reconstruct the neutrino mass matrix in flavor basis, in the case of inverted mass hierarchy (ordering), using all available experimental data on neutrino masses and oscillations. We analyze the dependence of the matrix elements mαβ on the CP violating Dirac, δ, and Majorana, ρ and σ, phases, for different values of the absolute mass scale. We find that the present data admit various structu...
abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...
ar X iv : h ep - p h / 97 04 25 3 v 2 8 A pr 1 99 7 April 1997 BROWN - HET - 1071 hep - ph / 9704253
We discuss a new general class of mass matrix ansatz that respects the fermion mass hierarchy and calculability of the flavor mixing matrix. This is a generalization and justification of the various specific forms of the mass matrix by successive breaking of the maximal permutation symmetry. By confronting the experimental data, a large class of the mass matrices are shown to survive, while cer...
one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...
In this paper, the invariant mass spectra of Λ (1405)→(Σπ)0 in high energy proton-proton collisions in center of mass frame have been theoretically investigated. In pp collision the Λ (1405) formation possibility has been taken into account and its decay rate to (Σπ)0 channel, has been calculated with T-matrix elements and Green’s function method. Finally, the results have been compared with ...
2↔3 symmetry is realized by the breaking from alterating group of degree 4 (A4) symmetry. A4 explains why the generation number is three. However the mass matrices are realized in the form of the breaking to 2 ↔ 3 symmetry ×Z3, which leads us to 2 ↔ 3 symmetric mass matrix with vanishing (1,1) component. Thus the 3 × 3 mass matrix model with 2 ↔ 3 symmetry and vanishing (1,1) component has the ...
We show that it is possible to fully determine the neutrino mass spectrum from two-zero textures of the neutrino mass matrix. As a consequence, definite predictions can be obtained for the neutrinoless double beta decay. Electronic address: [email protected] Mailing address 1 In the flavor basis where the charged lepton mass matrix is diagonal, a phenomenological analysis of two-zero textu...
2↔3 symmetry is realized by the breaking from alterating group of degree 4 (A4) symmetry. A4 explains why the generation number is three. However the mass matrices are realized in the form of the breaking to 2 ↔ 3 symmetry ×Z3, which leads us to 2 ↔ 3 symmetric mass matrix with vanishing (1,1) component. Thus the 3 × 3 mass matrix model with 2 ↔ 3 symmetry and vanishing (1,1) component has the ...
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