Mass-matrix ansatz and constraints onBs0−B¯s0mixing in 331 models

2008/02/03 by R. Martinez, R. Martı́nez, F. Ochoa · 2 citations
Mathematics · Physics and Astronomy · #Ansatz #Combinatorics #Function (biology) #High-Energy Particle Collisions Research #Mathematical analysis #Mathematical physics #Mathematics #Matrix (chemical analysis) #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Upper and lower bounds #Zero (linguistics) #hep-ph

paper · pdf · doi:10.1103/physrevd.77.065012

published as Phys.Rev.D77:065012,2008 · To be published at Physical Revew D

arxiv created 2008/02/03 · openalex publication_date 2008/03/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Comparing the theoretically predicted and measured values of the mass difference of the B_s⁰ system, we estimate the lower bound on the mass of the Z^\ensuremath' boson of models based on the SU(3)_c\ensuremath\bigotimesSU(3)_L\ensuremath\bigotimesU(1)_X gauge group. By assuming zero-texture approaches of the quark mass matrices, we find the ratio of the measured value to the theoretical prediction from the standard model and the Z^\ensuremath' contribution from the 331 models of the mass difference of the B_s⁰ system. We find lower bounds on the Z^\ensuremath' mass ranging between 1 TeV and 30 TeV for the two most popular 331 models, and four different zero-textures ans"atze. The above results are expressed as a function of the weak angle associated to the b\ensuremath-s\ensuremath-Z^\ensuremath' couplings.

Citations

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Cited by

• Flavor-changing neutral currents in 331 models
• A variant of 3-3-1 model for the generation of the SM fermion mass and mixing pattern