From CKM Matrix to MNS Matrix: A Model Based on SUSY SO(10) × U(2)F Symmetry

2001 ◽  
Vol 16 (supp01c) ◽  
pp. 893-895
Author(s):  
Mu-Chun Chen ◽  
K. T. Mahanthappa
Keyword(s):  
Solar Neutrino ◽  
Realistic Model ◽  
Flavor Symmetry ◽  
Solar Neutrino Problem ◽  
Ckm Matrix ◽  
Mixing Angles ◽  
Model Based

We construct a realistic model based on SUSY SO(10) with U(2) flavor symmetry. A set of symmetric mass textures give rise to very good predictions; 15 masses and 6 mixing angles are predicted by 11 parameters. Both the vacuum oscillation and LOW solutions are favored for the solar neutrino problem.

scholarly journals CHAOTIC INFLATION BASED ON AN ABELIAN D-FLAT DIRECTION

1995 ◽  
Vol 10 (38) ◽  
pp. 2923-2930 ◽  
Author(s):  
DAIJIRO SUEMATSU ◽  
YOSHIO YAMAGISHI
Keyword(s):  
Neutrino Mass ◽  
Solar Neutrino ◽  
Model Building ◽  
Realistic Model ◽  
Lepton Number ◽  
Coherent Oscillation ◽  
Solar Neutrino Problem ◽  
The Right ◽  
Chaotic Inflation

We study the inflation due to the D-flat direction of an extra U(1). This scenario is a hybrid of a right-handed sneutrino inflaton scenario and a gauge nonsinglet inflaton scenario. The inflaton is a gauge nonsinglet field which induces a right-handed neutrino mass spontaneously through an extra U(1) D-flat direction. This right-handed neutrino mass can be used to explain the solar neutrino problem. The reheating temperature resulting from the decay of the coherent oscillation of the right-handed sneutrino is sufficiently high so that the baryogenesis based on the lepton number asymmetry can be applicable. We also discuss the realistic model building.

scholarly journals NEUTRINO CP VIOLATING PARAMETERS FROM NONTRIVIAL QUARK–LEPTON CORRELATION: A S3 × GUT MODEL

2008 ◽  
Vol 23 (27n28) ◽  
pp. 4435-4448 ◽  
Author(s):  
MARCO PICARIELLO
Keyword(s):  
Correlation Matrix ◽  
Flavor Symmetry ◽  
Unified Theory ◽  
Grand Unified Theory ◽  
Next Generation ◽  
Lepton Sector ◽  
Mixing Angles ◽  
Model Based

We investigate the prediction on the lepton phases in theories with a nontrivial correlation between quark (CKM) and lepton (PMNS) mixing matrices. We show that the actual evidence, under the only assumption that the correlation matrix VM product of CKM and PMNS has a zero in the entry (1, 3), gives us a prediction for the three CP-violating invariants J, S1 and S2. A better determination of the lepton mixing angles will give stronger prediction for the CP-violating invariants in the lepton sector. These will be tested in the next generation experiments. To clarify how our prediction works, we show how a model based on a Grand Unified Theory and the permutation flavor symmetry S3 predicts [Formula: see text].

An Electrochemical Model Based Optimal Charging Algorithm for Lithium-Ion Batteries

2015 ◽  
Author(s):  
Sourav Pramanik ◽  
Sohel Anwar
Keyword(s):  
Management System ◽  
Optimization Problems ◽  
Optimal Algorithm ◽  
Algorithm Design ◽  
Lithium Ion ◽  
Cell Voltage ◽  
Realistic Model ◽  
Constant Current ◽  
Battery Management System ◽  
Model Based

In recent years, Lithium-Ion battery has gathered lot of importance in many forms of energy storage applications due to its overwhelming benefits. Any battery pack alone cannot achieve its optimal performance unless there is a robust and efficient energy management system, commonly known as battery management system or BMS. The Lithium-Ion charger is a voltage-limiting device that is similar to the lead acid system. The difference lies in a higher cell voltage; tighter voltage tolerance and the absence of trickle or float charge at full charge. In this work, we propose the design of a novel optimal strategy for charging the battery that better suits the battery performance. A performance index is defined that aims at minimizing the effort of regeneration along with a minimum deviation from the rated maximum thresholds for cell temperature and charging current. A more realistic model based on battery electrochemistry is used for the optimal algorithm design as opposed to equivalent circuit models. To solve the optimization problem, Pontryagin’s principle is used which is very effective for constrained optimization problems with both state and input constraints. Simulation results show that the proposed optimal charging algorithm is capable of shortening the charging time of a Lithium Ion cell while maintaining the temperature constraint when compared with the standard constant current charging.

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.

Sign in / Sign up

Export Citation Format

Share Document