Exploring the parameter space of texture four-zero quark mass matrices

2010/04/30 by Rohit Verma, Gulsheen Ahuja, Neelu Mahajan +2 · 22 citations
Mathematics · Physics and Astronomy · #Geometry #Hermitian matrix #Hierarchy #Mathematics #Mixing (physics) #Neutrino Physics Research #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Zero (linguistics) #hep-ph

paper · pdf · doi:10.1088/0954-3899/37/7/075020

published in Journal of Physics G Nuclear and Particle Physics 37(7), 075020 (IOP Publishing) · 13 pages, 4 figures, version accepted for publication in Journal Of Physics G

arxiv created 2010/04/30 · openalex publication_date 2010/06/02 · arxiv updated 2015/05/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We have attempted to extend the parameter space of the elements of the texture 4 zero Hermitian quark mass matrices, to include the case of `weak hierarchy' amongst them along with the usually considered `strong hierarchy' case. This has been carried out by giving wide variation to the hierarchy defining parameters D_U and D_D, having implications for the structural features of the mass matrices. We find that not only the weakly hierarchical mass matrices are able to reproduce the strongly hierarchical mixing angles but also both the phases having their origin in the mass matrices have to be non zero to achieve compatibility of these matrices with recent quark mixing data. Further noting the difference between the exclusive and inclusive values of V_ub, we have carried out separate analyses corresponding to these.

Citations

• Status of the Unitarity Triangle analysis in UTfit
• Review of Particle Physics
• Texture specific mass matrices andCPviolating asymmetry inBd0(Bd0)→ψKS
• Averages of b-hadron and c-hadron Properties at the End of 2007
• FLAVOR MIXING AND CP VIOLATION OF MASSIVE NEUTRINOS
• Can radiative magnification of mixing angles occur for two-zero neutrino mass matrix textures?
• LeptonicCPviolation in a two parameter model
• Unique mass texture for quarks and leptons
• Implications of the KamLAND measurement on the lepton flavor mixing matrix and the neutrino mass matrix
• Escape from washing out of baryon number in a two-zero-texture general Zee model compatible with the large mixing angle MSW solution
• Phenomenological implications of a class of neutrino mass matrices
• Texture zeros and majorana phases of the neutrino mass matrix
• A full determination of the neutrino mass spectrum from two-zero textures of the neutrino mass matrix
• NEUTRINO PARAMETER SPACE FOR A VANISHING ee ELEMENT IN THE NEUTRINO MASS MATRIX
• Phenomenology of two-texture zero neutrino mass matrices
• Zeroes of the neutrino mass matrix
• CPviolation in bilarge lepton mixing
• CP-Violation in the Renormalizable Theory of Weak Interaction
• Prediction of Ue3in neutrino mass matrix with two zeros
• Fritzsch-Xing mass matrices,Vtd,and theCP-violating phase δ