Flavor changing effects in family nonuniversalZ′ models

2006/06/09 by Cheng-Wei Chiang, N. G. Deshpande, Nilendra G Deshpande +2
Physics and Astronomy · #Fermion #Flavor #Gauge (firearms) #Gauge theory #Muon #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Symmetry (geometry) #U-1 #hep-ph

paper · pdf · doi:10.1088/1126-6708/2006/08/075

published as JHEP 0608:075,2006 · 17 pages, 2 figures

arxiv created 2006/06/09 · openalex publication_date 2006/08/29 · arxiv updated 2011/03/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Flavor-changing and CP-violating interactions of Z' to fermions are generally present in models with extra U(1) gauge symmetry that are string-inspired or related to broken gauged family symmetry. We study the consequences of such couplings in fermion electric dipole moments, muon g-2, and K and B meson mixings. From experimental limits or measured values, we constrain the off-diagonal Z' couplings to fermions. Some of these constraints are comparable or stronger than the existing constraints obtained from other observables.

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