ON THE POSSIBILITY OF A SOLUTION TO THE STRONG CP-PROBLEM WITHOUT AXION IN A SU(3)H FAMILY SYMMETRY MODEL

1991 ◽  
Vol 06 (26) ◽  
pp. 2437-2442 ◽  
Author(s):  
Z. G. BEREZHIANI
Keyword(s):  
Cp Violation ◽  
Quark Mass ◽  
Mass Generation ◽  
Family Symmetry ◽  
Symmetry Model ◽  
Symmetry Scheme ◽  
Horizontal Symmetry ◽  
Natural Solution

It is shown that the 'sea-saw' model of quark mass generation within the SU (3) H gauge horizontal symmetry scheme automatically satisfies the Nelson-Barr criteria for a natural solution of the strong CP-problem if the spontaneous character of CP-violation is supposed. Some possibilities for spontaneous CP-violation are discussed.

scholarly journals QUARK MASS HIERARCHY AND CP VIOLATION IN LOW ENERGY SUPERSYMMETRY

1996 ◽  
Vol 11 (23) ◽  
pp. 4307-4319 ◽  
Author(s):  
CHUN LIU
Keyword(s):  
Cp Violation ◽  
Quark Mass ◽  
Neutral Current ◽  
Vacuum Expectation ◽  
Discrete Symmetry ◽  
Low Energy ◽  
Tree Level ◽  
Mass Hierarchy ◽  
Family Symmetry ◽  
Flavor Changing

A pattern of quark mass hierarchy and CP violation within the framework of low energy supersymmetry is described. By assuming some discrete symmetry among the three families, the quarks of the third family obtain masses at tree level. The second family obtains masses radiatively at one-loop level due to the soft breaking of the family symmetry. At this level, the first family remains massless by some degeneracy conditions of the squarks. As a result of R parity violation, the sneutrino vacuum expectation values are nonvanishing. CP violation occurs through the superweak sneutrino exchange. This picture is consistent with the experiments on the flavor-changing neutral current.

scholarly journals Aspects of quark mass generation on a torus

2007 ◽  
Vol 31 (4) ◽  
pp. 746-749 ◽  
Author(s):  
C. S. Fischer ◽  
M. R. Pennington
Keyword(s):  
Quark Mass ◽  
Mass Generation

scholarly journals CP violation and neutrino masses and mixings from quark mass hierarchies

2007 ◽  
Vol 2007 (12) ◽  
pp. 030-030 ◽  
Author(s):  
Wilfried Buchmüller ◽  
Laura Covi ◽  
David Emmanuel-Costa ◽  
Sören Wiesenfeldt
Keyword(s):  
Cp Violation ◽  
Quark Mass ◽  
Neutrino Masses ◽  
Neutrino Masses And Mixings

Quark-Mass Generation by Pseudoparticles

1977 ◽  
Vol 39 (3) ◽  
pp. 121-124 ◽  
Author(s):  
D. G. Caldi
Keyword(s):  
Quark Mass ◽  
Mass Generation

scholarly journals A NEW APPROACH TO THE PARAMETRIZATION OF THE CABIBBO–KOBAYASHI–MASKAWA MATRIX

2001 ◽  
Vol 16 (09) ◽  
pp. 1645-1652 ◽  
Author(s):  
V. GUPTA
Keyword(s):  
Cp Violation ◽  
Linear Combination ◽  
Quark Mass ◽  
New Approach ◽  
Ckm Matrix ◽  
Unit Matrix ◽  
Mass Matrices ◽  
The Matrix ◽  
Special Case

The CKM-matrix V is written as a linear combination of the unit matrix I and a matrix U which causes intergenerational-mixing. It is shown that such a V results from a class of quark-mass matrices. The matrix U has to be Hermitian and unitary and therefore can depend at most on four real parameters. The available data on the CKM-matrix including CP-violation can be reproduced by [Formula: see text]. This is also true for the special case when U depends on only 2 real parameters. Also, for such a V the invariant phase Φ≡ϕ12+ϕ23-ϕ13, satisfies a criterion suggested for "maximal" CP-violation.

scholarly journals Neutrino masses in the left-right symmetry model with a family symmetry

2010 ◽  
Vol 59 (5) ◽  
pp. 3130
Author(s):  
Zhang Feng ◽  
Zhang Chun-Xu ◽  
Huang Ming-Qiu
Keyword(s):  
Neutrino Masses ◽  
Family Symmetry ◽  
Symmetry Model
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