scholarly journals Quark mass hierarchies, flavor mixing and maximal CP-violation

2008 ◽  
pp. 131-149
Author(s):  
Harald Fritzsch
Keyword(s):  
Cp Violation ◽  
Quark Mass ◽  
Flavor Mixing

scholarly journals Quark mass hierarchy and flavor mixing puzzles

2014 ◽  
Vol 29 (30) ◽  
pp. 1430067 ◽  
Author(s):  
Zhi-Zhong Xing
Keyword(s):  
Cp Violation ◽  
Electric Charge ◽  
Particle Physics ◽  
Quark Mass ◽  
Mass Hierarchy ◽  
Quark Masses ◽  
Lepton Flavor ◽  
Quark Flavor ◽  
Flavor Mixing ◽  
Highly Correlated

The fact that quarks of the same electric charge possess a mass hierarchy is a big puzzle in particle physics, and it must be highly correlated with the hierarchy of quark flavor mixing. This chapter is intended to provide a brief description of some important issues regarding quark masses, flavor mixing and CP-violation. A comparison between the salient features of quark and lepton flavor mixing structures is also made.

Origin of CP-violation through quark mass matrix

1990 ◽  
Vol 13 ◽  
pp. 499-504
Author(s):  
Kyungsik Kang
Keyword(s):  
Cp Violation ◽  
Quark Mass ◽  
Mass Matrix

NEUTRINOS: LOOKING FORWARD TO THE FUTURE

2007 ◽  
Vol 16 (05) ◽  
pp. 1313-1329
Author(s):  
HISAKAZU MINAKATA
Keyword(s):  
Cp Violation ◽  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Future Prospects ◽  
Neutrino Mass Hierarchy ◽  
Lepton Flavor ◽  
Mixing Parameters ◽  
Wide Range ◽  
Flavor Mixing ◽  
Mass Pattern

I discuss some aspects of future prospects of the experimental exploration of the unknowns in the neutrino mass pattern and the lepton flavor mixing. I start from measuring θ13 by reactors and accelerators as a prerequisite for proceeding to search for leptonic CP violation. I then discuss how CP violation can be uncovered, and how the neutrino mass hierarchy can be determined. I do these by resolving so called the "parameter degeneracy" which is required anyway if one wants to seek precision measurement of the lepton mixing parameters. As a concrete setting for resolving the degeneracy I use the Tokai-to-Kamioka-Korea two detector complex which receives neutrino superbeam from J-PARC, which is sometimes called as "T2KK". It is shown that T2KK is able to resolve all the eight-fold parameter degeneracy in a wide range of the lepton mixing parameters. Some alternative ways of measuring the unknowns are also briefly mentioned.

scholarly journals Implications of the Daya Bay observation of θ 13 on the leptonic flavor mixing structure and CP violation

2012 ◽  
Vol 36 (4) ◽  
pp. 281-297 ◽  
Author(s):  
Zhi-Zhong Xing
Keyword(s):  
Cp Violation ◽  
Daya Bay ◽  
Flavor Mixing

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 A String-Inspired Ansatz for Quark Masses and Mixing

1997 ◽  
Vol 12 (08) ◽  
pp. 561-571 ◽  
Author(s):  
Tatsuo Kobayashi ◽  
Zhi-Zhong Xing
Keyword(s):  
Quark Mass ◽  
Fine Tuning ◽  
Superstring Theory ◽  
Quark Masses ◽  
Gauge Symmetries ◽  
Down Quark ◽  
Mass Matrices ◽  
Renormalization Group Equations ◽  
Flavor Mixing ◽  
Good Agreement

We propose a simple but realistic pattern of quark mass matrices at the string scale, which can be derived from orbifold models of superstring theory with no use of gauge symmetries. This pattern is left–right symmetric and preserves the structural parallelism between up and down quark sectors. Its phenomenological consequences on flavor mixing and CP-violation are confronted with current experiments at the weak scale by using the renormalization group equations in the framework of minimal supersymmetric standard model. We find that good agreement is achievable without fine-tuning.

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

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 A 1993 look at the lower bound on the top quark mass from CP violation

1993 ◽  
Vol 317 (3) ◽  
pp. 449-453 ◽  
Author(s):  
Andrzej J. Buras
Keyword(s):  
Lower Bound ◽  
Cp Violation ◽  
Top Quark ◽  
Quark Mass ◽  
Top Quark Mass

scholarly journals Flavor mixing and CP violation from the interplay of an S4 modular group and a generalized CP symmetry

2021 ◽  
Vol 104 (7) ◽  
Author(s):  
Bu-Yao Qu ◽  
Xiang-Gan Liu ◽  
Ping-Tao Chen ◽  
Gui-Jun Ding
Keyword(s):  
Cp Violation ◽  
Modular Group ◽  
Flavor Mixing ◽  
Cp Symmetry
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