scholarly journals Getting at the Quark Mass Matrices

1997 ◽  
Vol 97 (5) ◽  
pp. 781-789 ◽  
Author(s):  
K. Harayama ◽  
N. Okamura ◽  
A. I. Sanda ◽  
Z.-Z. Xing
Keyword(s):  
Quark Mass ◽  
Mass Matrices

Structure of quark mass matrices in the rishon model

1983 ◽  
Vol 121 (5) ◽  
pp. 326-330 ◽  
Author(s):  
G. Ecker
Keyword(s):  
Quark Mass ◽  
Mass Matrices

NEUTRINO OSCILLATION AND LEPTON MASS MATRIX

1994 ◽  
Vol 09 (01) ◽  
pp. 41-50 ◽  
Author(s):  
KEN-ITI MATUMOTO ◽  
DAIJIRO SUEMATSU
Keyword(s):  
Solar Neutrino ◽  
Phase Structure ◽  
Quark Mass ◽  
Mass Matrix ◽  
Lepton Sector ◽  
Solar Neutrino Problem ◽  
Quark Sector ◽  
Mass Matrices ◽  
Suppression Mechanism ◽  
The Right

We apply the empirical quark mass matrices to the lepton sector and study the solar neutrino problem and the atmospheric vμ deficit problem simultaneously. We show that their consistent explanation is possible on the basis of these matrices. The lepton sector mass matrices need the phase structure which is different from the ones of the quark sector. However, even if the phase structure of the mass matrices is identical in both sectors, an interesting suppression mechanism of sin 2 2θ12 which is related to the solar neutrino problem can be induced from the right-handed neutrino Majorana mass matrix. We discuss such a possibility through the concrete examples.

scholarly journals Relations among Elements of the Quark Mass Matrices

2000 ◽  
Vol 103 (1) ◽  
pp. 135-144
Author(s):  
K. Harayama
Keyword(s):  
Quark Mass ◽  
Mass Matrices

B mixing, and quark mass matrices

1989 ◽  
Vol 217 (3) ◽  
pp. 341-346
Author(s):  
Debajyoti Choudhury ◽  
Utpal Sarkar
Keyword(s):  
Quark Mass ◽  
Mass Matrices ◽  
B Mixing

Quark mass matrices on a minimal parameter basis

1992 ◽  
Vol 46 (5) ◽  
pp. 2121-2130 ◽  
Author(s):  
Yoshio Koide
Keyword(s):  
Quark Mass ◽  
Mass Matrices

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.

RANK-ONE MASS MATRIX AND PHENOMENOLOGICAL CONSTRAINTS

1992 ◽  
Vol 07 (09) ◽  
pp. 757-762
Author(s):  
MANOJ K. SAMAL
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Mass Matrix ◽  
Top Quark Mass ◽  
Mass Matrices ◽  
Rank One

We give the phenomenological constraints for a scheme which was recently proposed to investigate the approximately symmetric KM matrix in relation to the rank-one quark mass matrices. The allowed ranges for the parameters in this scheme are given. It is shown that out of the three interesting solutions of the symmetric KM matrix discussed in this scheme one is inconsistent with experiments, whereas another one requires a very heavy top quark mass (m t ≈255 GeV ) to be consistent.

GENERAL STUDY OF QUARK MASS MATRICES WITH FULL OFF-DIAGONAL MIXING

1992 ◽  
Vol 07 (25) ◽  
pp. 6357-6370 ◽  
Author(s):  
ROBERT E. SHROCK
Keyword(s):  
Quark Mass ◽  
Mass Matrix ◽  
General Study ◽  
Mixing Angles ◽  
Quark Masses ◽  
Rotation Matrices ◽  
Quark Mixing ◽  
Down Quark ◽  
Mass Matrices ◽  
Mixing Matrix

We study an ansatz for the quark mass matrix in which all of the nondiagonal entries are nonzero, but which still allows the quark mixing angles to be calculated in terms of ratios of quark masses and certain phases. Analytic calculations of the orthogonal rotation matrices in the up and down quark sectors and the resultant observed quark mixing matrix are presented. Comparison with experimental data is given.

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